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Benign tumor

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377: 40: 790:, where each step produces a more advanced tumor. It is often broken down into three stages; initiation, promotion and progression, and several mutations may occur at each stage. Initiation is where the first genetic mutation occurs in a cell. Promotion is the clonal expansion (repeated division) of this transformed cell into a visible tumor that is usually benign. Following promotion, progression may take place where more genetic mutations are acquired in a sub-population of tumor cells. Progression changes the benign tumor into a malignant tumor. A prominent and well studied example of this phenomenon is the tubular adenoma, a common type of 736: 762:
which apply to either benign or malignant tumors, but sometimes one type may show characteristics of the other. For example, benign tumors are mostly well differentiated and malignant tumors are often undifferentiated. However, undifferentiated benign tumors and differentiated malignant tumors can occur. Although benign tumors generally grow slowly, cases of fast-growing benign tumors have also been documented. Some malignant tumors are mostly non-metastatic such as in the case of
723: 766:. CT and chest radiography can be a useful diagnostic exam in visualizing a benign tumor and differentiating it from a malignant tumor. The smaller the tumor on a radiograph the more likely it is to be benign as 80% of lung nodules less than 2 cm in diameter are benign. Most benign nodules are smoothed radiopaque densities with clear margins but these are not exclusive signs of benign tumors. 1118:
are typically, but not always, composed of cells which bear a strong resemblance to a normal cell type in their organ of origin. These tumors are named for the cell or tissue type from which they originate. The suffix "-oma" (but not -carcinoma, -sarcoma, or -blastoma, which are generally cancers) is
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capsule. The growth rates of benign and malignant tumors also differ; benign tumors generally grow more slowly than malignant tumors. Although benign tumors pose a lower health risk than malignant tumors, they both can be life-threatening in certain situations. There are many general characteristics
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Enchondromas are benign tumors of hyaline cartilage. Within a bone, enchondromas are often found in metaphyses. They can be found in many types of bone, including small bones, long bones, and the axial skeleton. X-ray of enchondromas shows well-defined borders and a stippled appearance. Presentation
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of bone. On histology, giant cells of fused osteoclasts are seen as a response to neoplastic mononucleated cells. Notably, giant cells are not unique among benign bone tumors to giant cell tumors of bone. Molecular characteristics of the neoplastic cells causing giant cell tumors of bone indicate an
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of long bones. While many osteochondromas occur spontaneously, there are cases in which several osteochondromas can occur in the same individual; these may be linked to a genetic condition known as hereditary multiple osteochondromas. Osteochondroma appears on X-ray as a projecting mass that often
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Although lipomas can develop at any age, they more commonly appear between the ages of 40 and 60. Lipomas affect about 1% of the population, with no documented sex bias, and about 1 in every 1000 people will have a lipoma within their lifetime. The cause of lipomas is not well defined. Genetic or
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Benign tumors are very diverse; they may be asymptomatic or may cause specific symptoms, depending on their anatomic location and tissue type. They grow outward, producing large, rounded masses which can cause what is known as a "mass effect". This growth can cause compression of local tissues or
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points away from joints. These tumors stop growing with the closure of the parental bone's growth plates. Failure to stop growth can be indicative of transformation to malignant chondrosarcoma. Treatment is not indicated unless symptomatic. In that case, surgical excision is often curative.
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tumors. The upper tumor is a benign tumor that is non-invasive. Benign tumors are usually round in shape and encapsulated by fibrous connective tissue. The lower picture depicts a malignant tumor. It is irregularly shaped, vascular, and it is invasive, crossing the
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or spread to distant sites by metastasizing then it is benign, whereas invasive or metastatic tumors are malignant. For this reason, benign tumors are not classed as cancer. Benign tumors will grow in a contained area usually encapsulated in a fibrous
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in the usual sense; the name merely specifies that it is not "malignant", i.e. cancerous. While benign tumours usually do not pose a serious health risk, they can be harmful or fatal. Many types of benign tumors have the potential to become cancerous
606:. Local growth can cause destruction of neighboring cortical bone and soft tissue, leading to pain and limiting range of motion. The characteristic radiologic finding of giant cell tumors of bone is a lytic lesion that does not have marginal 794:
which is an important precursor to colon cancer. The cells in tubular adenomas, like most tumors that frequently progress to cancer, show certain abnormalities of cell maturation and appearance collectively known as
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Osteochondromas form cartilage-capped projections of bone. Structures such as the marrow cavity and cortical bone of the osteochondroma are contiguous to those of the originating bone. Sites of origin often involve
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protein in normal cellular physiology. Inactivation of the TSC tumor suppressors causes an increase in mTOR activity. This leads to the activation of genes and the production of proteins that increase cell growth.
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can occur with various benign colonic tumors. Cosmetic effects can be caused by tumors, especially those of the skin, possibly causing psychological or social discomfort for the person with the tumor.
192:. For this reason and other possible harms, some benign tumors are removed by surgery. When removed, benign tumors usually do not return. Exceptions to this rule may indicate malignant transformation. 799:. These cellular abnormalities are not seen in benign tumors that rarely or never turn cancerous, but are seen in other pre-cancerous tissue abnormalities which do not form discrete masses, such as 667:). They are usually painless, slow-growing, and mobile masses that can occur anywhere in the body where there are fat cells, but are typically found on the trunk and upper extremities. 546:. Dysfunctional pVHL leads to accumulation of HIF1α. This activates several genes responsible for the production of substances involved in cell growth and blood vessel production: 3249: 710:) may be utilized to assist with the diagnosis of lipomas in atypical locations. The main treatment for lipomas is surgical excision, after which the tumor is examined with 2468:
Erasmus JJ, Connolly JE, McAdams HP, Roggli VL (2000). "Solitary pulmonary nodules: Part I. Morphologic evaluation for differentiation of benign and malignant lesions".
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Benign tumors do not encompass all benign growths. Skin tags, vocal chord polyps, and hyperplastic polyps of the colon are often referred to as benign, but they are
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to confirm the diagnosis. The prognosis for benign lipomas is excellent and recurrence after excision is rare, but may occur if the removal was incomplete.
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One of the most important factors in classifying a tumor as benign or malignant is its invasive potential. If a tumor lacks the ability to invade adjacent
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is usually the most effective approach and is used to treat most benign tumors. In some cases, other treatments may be used. Adenomas of the
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origin of pluripotent mesenchymal stem cells that adopt preosteoblastic markers. Cytogenetic causes of giant cell tumors of bone involve
1648:"Will the real Cowden syndrome please stand up (again)? Expanding mutational and clinical spectra of the PTEN hamartoma tumour syndrome" 333:
and mucocutaneous papillomatous papules) as well as a predisposition for cancers of multiple organs including the breast and thyroid.
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Marghoob AA, Borrego JP, Halpern AC (December 2007). "Congenital melanocytic nevi: treatment modalities and management options".
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inherited causes of lipomas play a role in around 2-3% of patients. In individuals with inherited familial syndromes such as
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Benign tumors typically need no treatment unless if they cause problems such as seizures, discomfort or cosmetic concerns.
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contain many cell types such as skin, nerve, brain and thyroid, among others, because they are derived from germ cells.
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is a dominantly inherited cancer syndrome that significantly increases the risk of various tumors. This includes benign
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are benign tumors of gland-forming cells, and are usually specified further by their cell or organ of origin, as in
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Sioka C, Kyritsis AP (March 2009). "Chemotherapy, hormonal therapy, and immunotherapy for recurrent meningiomas".
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Brada M (February 2013). "Radiotherapy for benign brain tumours coming of age; example of vestibular schwannoma".
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can be life-threatening. Tumors may exhibit behaviors characteristic of their cell type of origin; as an example,
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Aoki K, Taketo MM (October 2007). "Adenomatous polyposis coli (APC): a multi-functional tumor suppressor gene".
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have been identified in around 65% of lipoma cases. Lipomas have also been shown to be increased in those with
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The word "benign" means "favourable, kind, fortunate, salutary, propitious". However, a benign tumour is not
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Inoki K, Corradetti MN, Guan KL (January 2005). "Dysregulation of the TSC-mTOR pathway in human disease".
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Benign tumors of bone can be similar macroscopically and require a combination of a clinical history with
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Rao AK (February 2021). "Overview of Heart Tumors - Treatment of noncancerous (benign) heart tumors".
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Song HJ, Xue YL, Qiu ZL, Luo QY (2012). "Uncommon metastases from differentiated thyroid carcinoma".
1268: 169: 3500: 3423: 3032: 2990: 1160: 575: 574:, molecular, and radiologic tests for diagnosis. Three common forms of benign bone tumors with are 448: 2408:
Sagel SS, Ablow RC (November 1968). "Hamartoma: on occasion a rapidly growing tumor of the lung".
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Exceptions to the nomenclature rules exist for historical reasons; malignant examples include
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Skorić T, Korsić M, Zarković K, Plavsić V, Besenski N, Breskovac L, et al. (June 1999).
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Kolb, Logan; Yarrarapu, Siva Naga S.; Ameer, Muhammad Atif; Rosario-Collazo, Juan A. (2022),
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that can compress neighboring tissues. This can lead to nerve damage, blood flow reduction (
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Garcia RA, Inwards CY, Unni KK (February 2011). "Benign bone tumors--recent developments".
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Children with this type of tumor usually die of an abnormal heart rhythm at an early age.
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Luba MC, Bangs SA, Mohler AM, Stulberg DL (February 2003). "Common benign skin tumors".
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Crino PB, Nathanson KL, Henske EP (September 2006). "The tuberous sclerosis complex".
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Some forms of benign tumors may be harmful to health. Benign tumor growth causes a
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gene. The VHL protein (pVHL) is involved in cellular signaling in oxygen starved (
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organs, leading to many effects, such as blockage of ducts, reduced blood flow (
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Galiatsatos P, Foulkes WD (February 2006). "Familial adenomatous polyposis".
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Gill SS, Heuman DM, Mihas AA (October 2001). "Small intestinal neoplasms".
1407: 1356: 1230: 1206: 1020: 951: 838: 571: 487: 443:(LEF). These factors cause the upregulation of many genes involved in cell 420: 342: 214: 2587: 2538: 2429: 2358: 2341: 2066:
Kwiatkowski DJ (January 2003). "Tuberous sclerosis: from tubers to mTOR".
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Giant cell tumors of bone frequently occur in long bone epiphyses of the
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cells. They are often surrounded by an outer surface (fibrous sheath of
3234: 3158: 3007: 2944: 2908: 2569: 2554:"Mechanisms of multistep carcinogenesis and carcinogen risk assessment" 1762: 1745: 1262: 1144: 1096: 1089: 1072: 1065: 1051: 956: 833: 783: 740: 722: 699: 650:). Treatment of enchondromas involves surgical curettage and grafting. 629: 380: 230: 210: 185: 118: 98: 1947: 1480: 3274: 3177: 3063: 3048: 2929: 2913: 2421: 1218: 1156: 1128: 1032: 984: 979: 872: 860: 796: 664: 586:; other forms of benign bone tumors exist but may be less prevalent. 456: 326: 291: 234: 202: 137: 73: 48: 3167: 3058: 3017: 3002: 2875: 2867: 1993: 1175: 1167: 1152: 1124: 1115: 1084: 898: 779: 692: 612: 479: 242: 206: 141: 69: 1343:
Marks V, Teale JD (June 1991). "Tumours producing hypoglycaemia".
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Charifa, Ahmad; Azmat, Chaudhary Ehtsham; Badri, Talel (2022),
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Tromberg J, Bauer B, Benvenuto-Andrade C, Marghoob AA (2005).
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Lipomas are usually diagnosed clinically, although imaging (
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are a group of benign tumors that have relatively normal
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Acta Dermatovenerologica Alpina, Pannonica, et Adriatica
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Best Practice & Research. Clinical Gastroenterology
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Lipomas are benign, subcutaneous tumors of fat cells (
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Lichon, Sabrina; Khachemoune, Amor (September 2018).
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Pathology and genetics of tumours of endocrine organs
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of multiple enchondromas is consistent with multiple
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characterized by hamartomatous intestinal polyposis,
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Mass of cells which cannot spread throughout the body
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disorders characterized by genetic mutations in the
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For example, a 2653: 2308: 1890: 1261: 2628: 2600: 2442: 2274: 2190: 2148: 1975: 1973: 395: 3571: 2672: 1792: 1600: 1598: 1260: 2307:Nunn LS, Silverstein A, Silverstein VB (2006). 2283:, Treasure Island (FL): StatPearls Publishing, 2251:, Treasure Island (FL): StatPearls Publishing, 1483:"Congenital melanocytic nevi needing treatment" 1445: 1421:Eng C, DeLellis RA, Lloyd RV, Heitz PU (2004). 2144: 2142: 2140: 1970: 1553:Hamartoma Tumor Syndrome: A Clinical Overview" 1523: 1163:but exhibit disorganized tissue organization. 1131:is a benign tumor of cartilage-forming cells ( 221:can cause elevated levels of hormones such as 213:can produce large amounts of insulin, causing 3250: 2851: 2797: 2770: 2733: 2727: 2692: 2505:"Tumour progression and the nature of cancer" 2380: 2102: 2059: 2016: 1927: 1884: 1835: 1786: 1737: 1688: 1639: 1595: 462: 2624: 2622: 2374: 2333: 1607:"PTEN hamartoma tumor syndrome: an overview" 769: 653: 506: 2681: 2545: 2496: 2401: 2137: 2065: 1645: 1529: 1474: 1439: 1379: 801:pre-cancerous lesions of the uterine cervix 534:. It is caused by genetic mutations in the 121:. Common examples of benign tumors include 3257: 3243: 2858: 2844: 2806:Seminars in Cutaneous Medicine and Surgery 2407: 1933: 1793:Blumenthal GM, Dennis PA (November 2008). 1342: 1336: 285: 101:(spread throughout the body). Compared to 38: 2619: 2605:. Boston: Jones and Bartlett Publishers. 2577: 2528: 2357: 1859: 1818: 1761: 1720: 1671: 1622: 1604: 1578: 1568: 1498: 3264: 2647: 1893:The American Journal of Gastroenterology 1546: 734: 721: 375: 105:, benign tumors generally have a slower 2603:Cancer nursing: principles and practice 2551: 1386:Grant CS (October 2005). "Insulinoma". 1178:(a cancer of male reproductive cells). 1123:is a common benign tumor of fat cells ( 3572: 2601:Wujcik D, Yarbro CH, Gobel BH (2011). 1170:(a cancer of pigmented skin cells, or 730: 3238: 2839: 2698: 2685:Benign tumors of the colon and rectum 2654:Cotran R, Kumar V, Collins T (1999). 2629:Strayer DL, Rubin R, Rubin E (2008). 2502: 2443:Strayer DL, Rubin R, Rubin E (2008). 2238: 2236: 2234: 2232: 2230: 2228: 2226: 2186: 2184: 2182: 2180: 2108: 1841: 1533:Benign tumors of the colon and rectum 1385: 195: 109:. Benign tumors have relatively well 2482:10.1148/radiographics.20.1.g00ja0343 2383:Hellenic Journal of Nuclear Medicine 1448:Journal of Clinical Gastroenterology 1282:participating institution membership 589: 290:PTEN hamartoma syndrome encompasses 273:can bleed, in some cases leading to 2656:Robbins Pathologic Basis of Disease 2025:The New England Journal of Medicine 1743: 1694: 1294: 498:. Tuberin and hamartin inhibit the 13: 2223: 2177: 1799:European Journal of Human Genetics 726:Benign (L) vs Malignant tumor (R). 536:Von Hippel–Lindau tumor suppressor 423:unless removed. The APC gene is a 14: 3596: 2558:Environmental Health Perspectives 2346:European Journal of Endocrinology 1605:Hobert JA, Eng C (October 2009). 811: 622: 335:Bannayan–Riley–Ruvalcaba syndrome 325:characterized by multiple benign 304:Bannayan–Riley–Ruvalcaba syndrome 298:tumor suppressor gene, including 2151:Seminars in Diagnostic Pathology 2080:10.1046/j.1469-1809.2003.00012.x 1905:10.1111/j.1572-0241.2006.00375.x 1795:"PTEN hamartoma tumor syndromes" 1746:"PTEN: one gene, many syndromes" 1500:10.1111/j.1529-8019.2005.05012.x 1460:10.1097/00004836-200110000-00004 2658:(6th ed.). W.B. Saunders. 2461: 2268: 1540: 117:) or stay contained within the 1646:Pilarski R, Eng C (May 2004). 1288: 1254: 636: 565: 401:Familial adenomatous polyposis 396:Familial adenomatous polyposis 389:familial adenomatous polyposis 1: 3173:Clonally transmissible cancer 1844:"Proteus syndrome: an update" 1247: 677:Familial multiple lipomatosis 431:. This protein activates two 188:) through a process known as 3470:Obstetric labor complication 2713:10.1016/j.radonc.2013.01.009 1624:10.1097/GIM.0b013e3181ac9aea 1188: 1183:overgrowths of normal tissue 806: 717: 482:. TSC2 produces the protein 478:. TSC1 produces the protein 227:insulin-like growth factor-1 103:malignant (cancerous) tumors 7: 2163:10.1053/j.semdp.2011.02.013 1701:Journal of Medical Genetics 1652:Journal of Medical Genetics 1345:Diabetes/Metabolism Reviews 1298:MSD Manual Consumer Version 528:pancreatic endocrine tumors 419:. The polyps progress into 407:caused by mutations in the 10: 3601: 3465:Complications of pregnancy 3204:Index of oncology articles 2818:10.1016/j.sder.2008.03.007 2682:Zuber M, Harder F (2001). 2111:Current Molecular Medicine 1530:Zuber M, Harder F (2001). 832: 708:magnetic resonance imaging 658: 468:Tuberous sclerosis complex 463:Tuberous sclerosis complex 415:polyps are present in the 3553: 3529: 3511:Connective tissue disease 3496: 3483: 3460: 3432: 3414: 3401: 3383: 3360: 3347: 3334: 3306: 3288: 3270: 3191: 3144: 3102: 3077: 3041: 2963: 2922: 2889: 2882: 2779:American Family Physician 2748:10.1007/s11060-008-9734-y 2736:Journal of Neuro-Oncology 2701:Radiotherapy and Oncology 2552:Barrett JC (April 1993). 2509:British Journal of Cancer 2503:Clark WH (October 1991). 2153:. Orthopaedic Pathology. 1400:10.1016/j.bpg.2005.05.008 1269:Oxford English Dictionary 1107: 1050: 945: 859: 770:Multistage carcinogenesis 654:Benign soft tissue tumors 512:Von Hippel–Lindau disease 507:Von Hippel–Lindau disease 373:, vascular malformation. 280: 95:invade neighboring tissue 63: 46: 37: 29: 24: 3501:Musculoskeletal disorder 3424:Gastrointestinal disease 2123:10.2174/1566524043359827 2068:Annals of Human Genetics 1842:Cohen MM (August 2005). 1744:Eng C (September 2003). 1547:Pilarski R (June 2019). 1161:cellular differentiation 532:endolymphatic sac tumors 441:lymphoid enhancer factor 172:may overproduce certain 3126:Prostate cancer staging 3090:Paraneoplastic syndrome 1936:Journal of Cell Science 1695:Eng C (November 2000). 1664:10.1136/jmg.2004.018036 1570:10.3390/cancers11060844 1274:Oxford University Press 1185:rather than neoplasms. 928:Squamous cell papilloma 817:Tumors and cell origin 286:PTEN hamartoma syndrome 170:adrenocortical adenomas 3442:Female genital disease 3419:Maxillofacial disorder 3388:Cardiovascular disease 3164:Tumor suppressor genes 3131:Gleason grading system 3085:Precancerous condition 1357:10.1002/dmr.5610070202 749: 727: 392: 271:Vascular tissue tumors 3365:Neurological disorder 3183:Carcinogenic bacteria 2923:Malignant progression 2359:10.1530/eje.0.1400528 1811:10.1038/ejhg.2008.162 1713:10.1136/jmg.37.11.828 916:Renal tubular adenoma 774:Tumors are formed by 738: 725: 596:appendicular skeleton 524:renal cell carcinomas 433:transcription factors 379: 312:Proteus-like syndrome 3506:Soft tissue disorder 3452:Male genital disease 3265:Major Disease groups 3136:Dukes classification 2521:10.1038/bjc.1991.375 2037:10.1056/NEJMra055323 1942:(Pt 19): 3327–3335. 1861:10.1002/ajmg.c.30063 1611:Genetics in Medicine 1487:Dermatologic Therapy 1425:. Lyon: IARC Press. 1201:may be treated with 786:changes to a cell's 764:basal-cell carcinoma 739:Diagram showing two 496:lymphangiomyomatosis 403:(FAP) is a familial 361:is characterized by 3580:Medical terminology 3534:Congenital disorder 3475:Postpartum disorder 3406:Respiratory disease 3339:Hematologic disease 2955:Sentinel lymph node 1272:(Online ed.). 1143:(a benign tumor of 818: 731:Benign vs malignant 704:computed tomography 339:congenital disorder 33:non-cancerous tumor 3321:Metabolic disorder 3003:Respiratory system 2570:10.1289/ehp.931009 2277:"Lipoma Pathology" 1763:10.1002/humu.10257 1239:topical medication 1223:electrodesiccation 892:Liver cell adenoma 816: 750: 728: 393: 387:of a patient with 320:autosomal dominant 219:Pituitary adenomas 196:Signs and symptoms 3567: 3566: 3547: 3546: 3393:Lymphatic disease 3311:Endocrine disease 3280:Parasitic disease 3232: 3231: 3219:Cancer and nausea 3098: 3097: 2935:Carcinoma in situ 2640:978-0-7817-9516-6 2612:978-0-7637-6357-2 2031:(13): 1345–1356. 1948:10.1242/jcs.03485 1805:(11): 1289–1300. 1280:(Subscription or 1211:radiation therapy 1112: 1111: 759:connective tissue 746:basement membrane 693:diabetes mellitus 590:Giant cell tumors 520:pheochromocytomas 516:hemangioblastomas 439:factor (TCF) and 247:Cushing's disease 205:), tissue death ( 190:tumor progression 150:respiratory tract 140:), tissue death ( 115:connective tissue 79: 78: 57:intradermal nevus 19:Medical condition 3592: 3585:Benign neoplasms 3551: 3550: 3437:Urologic disease 3259: 3252: 3245: 3236: 3235: 3033:Endocrine system 2998:Digestive system 2887: 2886: 2860: 2853: 2846: 2837: 2836: 2830: 2829: 2801: 2795: 2794: 2774: 2768: 2767: 2731: 2725: 2724: 2696: 2690: 2689: 2679: 2670: 2669: 2651: 2645: 2644: 2626: 2617: 2616: 2598: 2592: 2591: 2581: 2549: 2543: 2542: 2532: 2500: 2494: 2493: 2465: 2459: 2458: 2440: 2434: 2433: 2422:10.1148/91.5.971 2405: 2399: 2398: 2378: 2372: 2371: 2361: 2337: 2331: 2330: 2314: 2304: 2298: 2297: 2296: 2295: 2272: 2266: 2265: 2264: 2263: 2240: 2221: 2220: 2188: 2175: 2174: 2146: 2135: 2134: 2106: 2100: 2099: 2063: 2057: 2056: 2020: 2014: 2013: 1977: 1968: 1967: 1931: 1925: 1924: 1888: 1882: 1881: 1863: 1839: 1833: 1832: 1822: 1790: 1784: 1783: 1765: 1741: 1735: 1734: 1724: 1692: 1686: 1685: 1675: 1643: 1637: 1636: 1626: 1602: 1593: 1592: 1582: 1572: 1544: 1538: 1537: 1527: 1521: 1520: 1502: 1478: 1472: 1471: 1443: 1437: 1436: 1418: 1412: 1411: 1383: 1377: 1376: 1340: 1334: 1333: 1315: 1306: 1305: 1292: 1286: 1285: 1277: 1265: 1258: 1016:Lymphatic vessel 819: 815: 673:Proteus syndrome 644:enchondromatosis 576:giant cell tumor 494:, and pulmonary 425:tumor suppressor 359:Proteus syndrome 323:genetic disorder 308:Proteus syndrome 166:thyroid adenomas 127:uterine fibroids 93:) that does not 42: 22: 21: 3600: 3599: 3595: 3594: 3593: 3591: 3590: 3589: 3570: 3569: 3568: 3563: 3562: 3548: 3543: 3525: 3492: 3479: 3456: 3428: 3410: 3397: 3379: 3356: 3352:Mental disorder 3343: 3330: 3326:Immune disorder 3302: 3284: 3266: 3263: 3233: 3228: 3187: 3140: 3094: 3073: 3037: 2959: 2918: 2878: 2864: 2834: 2833: 2802: 2798: 2775: 2771: 2732: 2728: 2697: 2693: 2680: 2673: 2666: 2652: 2648: 2641: 2627: 2620: 2613: 2599: 2595: 2550: 2546: 2501: 2497: 2466: 2462: 2455: 2441: 2437: 2406: 2402: 2379: 2375: 2338: 2334: 2327: 2305: 2301: 2293: 2291: 2273: 2269: 2261: 2259: 2241: 2224: 2189: 2178: 2147: 2138: 2107: 2103: 2074:(Pt 1): 87–96. 2064: 2060: 2021: 2017: 1982:Nature Genetics 1978: 1971: 1932: 1928: 1889: 1885: 1840: 1836: 1791: 1787: 1742: 1738: 1707:(11): 828–830. 1693: 1689: 1644: 1640: 1617:(10): 687–694. 1603: 1596: 1545: 1541: 1528: 1524: 1479: 1475: 1444: 1440: 1433: 1419: 1415: 1384: 1380: 1341: 1337: 1330: 1316: 1309: 1293: 1289: 1279: 1259: 1255: 1250: 1244: 1191: 1141:hepatic adenoma 1040:Striated muscle 904:Hydatiform mole 814: 809: 772: 733: 720: 661: 656: 639: 625: 617:bisphosphonates 592: 568: 509: 492:angiomyolipomas 465: 449:differentiation 405:cancer syndrome 398: 351:hemangiomatosis 316:Cowden syndrome 300:Cowden syndrome 288: 283: 267:intussusception 255:hyperthyroidism 253:, which causes 198: 164:tumors such as 20: 17: 12: 11: 5: 3598: 3588: 3587: 3582: 3565: 3564: 3558: 3557: 3555: 3554:Classification 3545: 3544: 3542: 3541: 3536: 3530: 3527: 3526: 3524: 3523: 3518: 3513: 3508: 3503: 3497: 3494: 3493: 3491: 3490: 3484: 3481: 3480: 3478: 3477: 3472: 3467: 3461: 3458: 3457: 3455: 3454: 3449: 3447:Breast disease 3444: 3439: 3433: 3430: 3429: 3427: 3426: 3421: 3415: 3412: 3411: 3409: 3408: 3402: 3399: 3398: 3396: 3395: 3390: 3384: 3381: 3380: 3378: 3377: 3372: 3367: 3361: 3358: 3357: 3355: 3354: 3348: 3345: 3344: 3342: 3341: 3335: 3332: 3331: 3329: 3328: 3323: 3318: 3313: 3307: 3304: 3303: 3301: 3300: 3295: 3289: 3286: 3285: 3283: 3282: 3277: 3271: 3268: 3267: 3262: 3261: 3254: 3247: 3239: 3230: 3229: 3227: 3226: 3221: 3216: 3211: 3206: 3201: 3195: 3193: 3189: 3188: 3186: 3185: 3180: 3175: 3170: 3161: 3156: 3150: 3148: 3146:Carcinogenesis 3142: 3141: 3139: 3138: 3133: 3128: 3123: 3118: 3112: 3110: 3100: 3099: 3096: 3095: 3093: 3092: 3087: 3081: 3079: 3075: 3074: 3072: 3071: 3066: 3061: 3056: 3051: 3045: 3043: 3039: 3038: 3036: 3035: 3030: 3028:Nervous system 3025: 3020: 3015: 3010: 3005: 3000: 2995: 2994: 2993: 2991:nasopharyngeal 2988: 2983: 2978: 2967: 2965: 2961: 2960: 2958: 2957: 2952: 2947: 2942: 2937: 2932: 2926: 2924: 2920: 2919: 2917: 2916: 2911: 2906: 2901: 2895: 2893: 2884: 2880: 2879: 2863: 2862: 2855: 2848: 2840: 2832: 2831: 2812:(4): 231–240. 2796: 2785:(4): 729–738. 2769: 2726: 2707:(2): 157–160. 2691: 2671: 2664: 2646: 2639: 2618: 2611: 2593: 2544: 2515:(4): 631–644. 2495: 2460: 2454:978-1605479682 2453: 2435: 2416:(5): 971–972. 2400: 2389:(3): 233–240. 2373: 2352:(6): 528–537. 2332: 2325: 2299: 2267: 2222: 2203:(3): 137–139. 2176: 2136: 2117:(8): 833–842. 2101: 2058: 2015: 1994:10.1038/ng1494 1969: 1926: 1899:(2): 385–398. 1883: 1834: 1785: 1756:(3): 183–198. 1750:Human Mutation 1736: 1687: 1658:(5): 323–326. 1638: 1594: 1539: 1522: 1493:(2): 136–150. 1473: 1454:(4): 267–282. 1438: 1431: 1413: 1394:(5): 783–798. 1378: 1335: 1328: 1307: 1287: 1252: 1251: 1249: 1246: 1235:chemical peels 1190: 1187: 1110: 1109: 1105: 1104: 1102:Ganglioneuroma 1099: 1093: 1092: 1087: 1081: 1080: 1075: 1069: 1068: 1059: 1054: 1048: 1047: 1042: 1036: 1035: 1030: 1024: 1023: 1018: 1012: 1011: 1006: 1004:Fibrous tissue 1000: 999: 994: 988: 987: 982: 976: 975: 970: 964: 963: 961:Cardiac myxoma 954: 949: 943: 942: 937: 931: 930: 925: 919: 918: 913: 907: 906: 901: 895: 894: 889: 883: 882: 876: 875: 869: 868: 863: 857: 856: 851: 845: 844: 841: 836: 830: 829: 826: 823: 813: 812:Classification 810: 808: 805: 776:carcinogenesis 771: 768: 732: 729: 719: 716: 712:histopathology 689:hyperlipidemia 660: 657: 655: 652: 648:Ollier Disease 638: 635: 624: 623:Osteochondroma 621: 604:axial skeleton 591: 588: 580:osteochondroma 567: 564: 560:erythropoietin 518:and malignant 508: 505: 464: 461: 411:gene. In FAP, 397: 394: 331:trichilemmomas 287: 284: 282: 279: 245:, which cause 229:, which cause 223:growth hormone 197: 194: 111:differentiated 77: 76: 67: 61: 60: 44: 43: 35: 34: 31: 27: 26: 18: 15: 9: 6: 4: 3: 2: 3597: 3586: 3583: 3581: 3578: 3577: 3575: 3561: 3556: 3552: 3540: 3539:Fetal disease 3537: 3535: 3532: 3531: 3528: 3522: 3519: 3517: 3514: 3512: 3509: 3507: 3504: 3502: 3499: 3498: 3495: 3489: 3486: 3485: 3482: 3476: 3473: 3471: 3468: 3466: 3463: 3462: 3459: 3453: 3450: 3448: 3445: 3443: 3440: 3438: 3435: 3434: 3431: 3425: 3422: 3420: 3417: 3416: 3413: 3407: 3404: 3403: 3400: 3394: 3391: 3389: 3386: 3385: 3382: 3376: 3373: 3371: 3368: 3366: 3363: 3362: 3359: 3353: 3350: 3349: 3346: 3340: 3337: 3336: 3333: 3327: 3324: 3322: 3319: 3317: 3314: 3312: 3309: 3308: 3305: 3299: 3296: 3294: 3291: 3290: 3287: 3281: 3278: 3276: 3273: 3272: 3269: 3260: 3255: 3253: 3248: 3246: 3241: 3240: 3237: 3225: 3222: 3220: 3217: 3215: 3212: 3210: 3207: 3205: 3202: 3200: 3197: 3196: 3194: 3190: 3184: 3181: 3179: 3176: 3174: 3171: 3169: 3165: 3162: 3160: 3157: 3155: 3152: 3151: 3149: 3147: 3143: 3137: 3134: 3132: 3129: 3127: 3124: 3122: 3119: 3117: 3114: 3113: 3111: 3109: 3105: 3101: 3091: 3088: 3086: 3083: 3082: 3080: 3076: 3070: 3067: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3046: 3044: 3040: 3034: 3031: 3029: 3026: 3024: 3021: 3019: 3016: 3014: 3011: 3009: 3006: 3004: 3001: 2999: 2996: 2992: 2989: 2987: 2984: 2982: 2981:oropharyngeal 2979: 2977: 2974: 2973: 2972: 2971:Head and neck 2969: 2968: 2966: 2962: 2956: 2953: 2951: 2950:Primary tumor 2948: 2946: 2943: 2941: 2938: 2936: 2933: 2931: 2928: 2927: 2925: 2921: 2915: 2912: 2910: 2907: 2905: 2902: 2900: 2897: 2896: 2894: 2892: 2891:Benign tumors 2888: 2885: 2881: 2877: 2873: 2869: 2861: 2856: 2854: 2849: 2847: 2842: 2841: 2838: 2827: 2823: 2819: 2815: 2811: 2807: 2800: 2792: 2788: 2784: 2780: 2773: 2765: 2761: 2757: 2753: 2749: 2745: 2741: 2737: 2730: 2722: 2718: 2714: 2710: 2706: 2702: 2695: 2687: 2686: 2678: 2676: 2667: 2665:0-7216-7335-X 2661: 2657: 2650: 2642: 2636: 2632: 2625: 2623: 2614: 2608: 2604: 2597: 2589: 2585: 2580: 2575: 2571: 2567: 2563: 2559: 2555: 2548: 2540: 2536: 2531: 2526: 2522: 2518: 2514: 2510: 2506: 2499: 2491: 2487: 2483: 2479: 2475: 2471: 2470:Radiographics 2464: 2456: 2450: 2446: 2439: 2431: 2427: 2423: 2419: 2415: 2411: 2404: 2396: 2392: 2388: 2384: 2377: 2369: 2365: 2360: 2355: 2351: 2347: 2343: 2336: 2328: 2326:0-7613-2833-5 2322: 2318: 2313: 2312: 2303: 2290: 2286: 2282: 2278: 2271: 2258: 2254: 2250: 2246: 2239: 2237: 2235: 2233: 2231: 2229: 2227: 2218: 2214: 2210: 2206: 2202: 2198: 2194: 2187: 2185: 2183: 2181: 2172: 2168: 2164: 2160: 2156: 2152: 2145: 2143: 2141: 2132: 2128: 2124: 2120: 2116: 2112: 2105: 2097: 2093: 2089: 2085: 2081: 2077: 2073: 2069: 2062: 2054: 2050: 2046: 2042: 2038: 2034: 2030: 2026: 2019: 2011: 2007: 2003: 1999: 1995: 1991: 1987: 1983: 1976: 1974: 1965: 1961: 1957: 1953: 1949: 1945: 1941: 1937: 1930: 1922: 1918: 1914: 1910: 1906: 1902: 1898: 1894: 1887: 1879: 1875: 1871: 1867: 1862: 1857: 1853: 1849: 1845: 1838: 1830: 1826: 1821: 1816: 1812: 1808: 1804: 1800: 1796: 1789: 1781: 1777: 1773: 1769: 1764: 1759: 1755: 1751: 1747: 1740: 1732: 1728: 1723: 1718: 1714: 1710: 1706: 1702: 1698: 1691: 1683: 1679: 1674: 1669: 1665: 1661: 1657: 1653: 1649: 1642: 1634: 1630: 1625: 1620: 1616: 1612: 1608: 1601: 1599: 1590: 1586: 1581: 1576: 1571: 1566: 1562: 1558: 1554: 1552: 1543: 1535: 1534: 1526: 1518: 1514: 1510: 1506: 1501: 1496: 1492: 1488: 1484: 1477: 1469: 1465: 1461: 1457: 1453: 1449: 1442: 1434: 1432:92-832-2416-7 1428: 1424: 1417: 1409: 1405: 1401: 1397: 1393: 1389: 1382: 1374: 1370: 1366: 1362: 1358: 1354: 1350: 1346: 1339: 1331: 1329:0-443-10101-9 1325: 1321: 1314: 1312: 1304: 1300: 1299: 1291: 1283: 1275: 1271: 1270: 1264: 1257: 1253: 1245: 1242: 1240: 1236: 1232: 1228: 1227:laser therapy 1224: 1220: 1216: 1212: 1208: 1204: 1203:sclerotherapy 1200: 1196: 1186: 1184: 1179: 1177: 1173: 1169: 1164: 1162: 1158: 1154: 1150: 1146: 1142: 1138: 1134: 1130: 1126: 1122: 1117: 1106: 1103: 1100: 1098: 1095: 1094: 1091: 1088: 1086: 1083: 1082: 1079: 1076: 1074: 1071: 1070: 1067: 1063: 1060: 1058: 1055: 1053: 1049: 1046: 1043: 1041: 1038: 1037: 1034: 1031: 1029: 1028:Smooth muscle 1026: 1025: 1022: 1019: 1017: 1014: 1013: 1010: 1007: 1005: 1002: 1001: 998: 995: 993: 990: 989: 986: 983: 981: 978: 977: 974: 971: 969: 966: 965: 962: 958: 955: 953: 950: 948: 944: 941: 940:Gastric polyp 938: 936: 933: 932: 929: 926: 924: 921: 920: 917: 914: 912: 909: 908: 905: 902: 900: 897: 896: 893: 890: 888: 885: 884: 881: 878: 877: 874: 871: 870: 867: 864: 862: 858: 855: 854:Colonic polyp 852: 850: 847: 846: 842: 840: 837: 835: 831: 827: 824: 821: 820: 804: 802: 798: 793: 789: 785: 781: 777: 767: 765: 760: 755: 747: 742: 737: 724: 715: 713: 709: 705: 701: 696: 694: 690: 686: 682: 681:chromosome 12 678: 674: 668: 666: 651: 649: 645: 634: 631: 620: 618: 614: 609: 605: 601: 597: 587: 585: 581: 577: 573: 563: 561: 557: 553: 549: 545: 541: 537: 533: 529: 525: 521: 517: 513: 504: 501: 497: 493: 489: 488:angiofibromas 485: 481: 477: 473: 469: 460: 458: 454: 450: 446: 445:proliferation 442: 438: 434: 430: 426: 422: 418: 414: 410: 406: 402: 390: 386: 385:sigmoid colon 382: 378: 374: 372: 368: 364: 360: 356: 352: 348: 344: 340: 336: 332: 328: 324: 321: 317: 313: 309: 305: 301: 297: 293: 292:hamartomatous 278: 276: 272: 268: 264: 260: 256: 252: 248: 244: 240: 236: 232: 228: 224: 220: 216: 212: 208: 204: 193: 191: 187: 182: 177: 175: 171: 167: 163: 159: 155: 151: 147: 143: 139: 135: 130: 128: 124: 120: 116: 112: 108: 104: 100: 96: 92: 88: 85:is a mass of 84: 75: 71: 68: 66: 62: 59:, 10x-cropped 58: 54: 50: 45: 41: 36: 32: 28: 23: 3521:Chondropathy 3516:Bone disease 3488:Skin disease 3316:Malnutrition 3293:Benign tumor 3292: 2890: 2866:Overview of 2809: 2805: 2799: 2782: 2778: 2772: 2739: 2735: 2729: 2704: 2700: 2694: 2684: 2655: 2649: 2630: 2602: 2596: 2561: 2557: 2547: 2512: 2508: 2498: 2476:(1): 43–58. 2473: 2469: 2463: 2444: 2438: 2413: 2409: 2403: 2386: 2382: 2376: 2349: 2345: 2335: 2310: 2302: 2292:, retrieved 2280: 2270: 2260:, retrieved 2248: 2200: 2196: 2157:(1): 73–85. 2154: 2150: 2114: 2110: 2104: 2071: 2067: 2061: 2028: 2024: 2018: 1988:(1): 19–24. 1985: 1981: 1939: 1935: 1929: 1896: 1892: 1886: 1854:(1): 38–52. 1851: 1847: 1837: 1802: 1798: 1788: 1753: 1749: 1739: 1704: 1700: 1690: 1655: 1651: 1641: 1614: 1610: 1560: 1556: 1550: 1542: 1532: 1525: 1490: 1486: 1476: 1451: 1447: 1441: 1422: 1416: 1391: 1387: 1381: 1351:(2): 79–91. 1348: 1344: 1338: 1319: 1302: 1297: 1290: 1267: 1256: 1243: 1231:dermabrasion 1207:chemotherapy 1192: 1180: 1165: 1133:chondrocytes 1113: 1021:Lymphangioma 952:Blood vessel 843:Cholangioma 839:Biliary tree 822:Cell origin 773: 751: 697: 669: 662: 640: 626: 593: 569: 510: 466: 421:colon cancer 399: 367:cystadenomas 343:macrocephaly 289: 215:hypoglycemia 199: 180: 178: 158:brain tumors 131: 83:benign tumor 82: 80: 25:Benign tumor 3375:Ear disease 3370:Eye disease 3214:Cancer pain 3154:Cancer cell 2899:Hyperplasia 1215:cryotherapy 1172:melanocytes 1145:hepatocytes 1097:Nerve cells 1073:Melanocytes 1062:Astrocytoma 1045:Rhabdomyoma 947:Mesenchymal 880:Cystadenoma 792:colon polyp 637:Enchondroma 584:enchondroma 572:cytogenetic 566:Bone tumors 413:adenomatous 355:glans penis 347:lipomatosis 211:Insulinomas 134:mass effect 107:growth rate 99:metastasize 30:Other names 3574:Categories 3159:Carcinogen 3023:Urogenital 2964:Topography 2945:Metastasis 2909:Pseudocyst 2883:Conditions 2742:(1): 1–6. 2294:2022-09-19 2281:StatPearls 2262:2022-09-19 2249:StatPearls 1563:(6): 844. 1284:required.) 1248:References 1241:are used. 1157:Hamartomas 1108:Reference 1090:Meningioma 1066:Schwannoma 1052:Ectodermal 992:Fat tissue 957:Hemangioma 834:Endodermal 825:Cell type 784:epigenetic 741:epithelial 700:ultrasound 665:adipocytes 630:metaphyses 381:Endoscopic 327:hamartomas 231:acromegaly 119:epithelium 3275:Infection 3178:Oncovirus 3168:oncogenes 3121:Ann Arbor 3064:Papilloma 3049:Carcinoma 3042:Histology 2986:laryngeal 2930:Dysplasia 2914:Hamartoma 2410:Radiology 2209:1581-2979 2010:205344131 1219:curettage 1189:Treatment 1153:Teratomas 1129:chondroma 1127:), and a 1125:lipocytes 1116:neoplasms 1033:Leiomyoma 985:Chondroma 980:Cartilage 899:Placental 873:Papilloma 861:Glandular 807:Diagnosis 797:dysplasia 718:Mechanism 613:telomeres 608:sclerosis 578:of bone, 457:apoptosis 453:migration 429:β-catenin 383:image of 357:macules. 235:prolactin 203:ischaemia 186:malignant 162:endocrine 74:Pathology 65:Specialty 49:epidermis 3199:Research 3059:Blastoma 2876:oncology 2826:18395671 2791:12613727 2764:28106960 2756:19023520 2721:23462704 2564:: 9–20. 2490:10682770 2395:23106056 2368:10366409 2289:29493968 2257:29939683 2245:"Lipoma" 2217:30244263 2171:21675379 2131:15579030 2096:41992893 2088:12556239 2045:17005952 2002:15624019 1956:17881494 1913:16454848 1878:31873101 1870:16010681 1829:18781191 1780:13417857 1772:12938083 1731:11073535 1682:15121767 1633:19668082 1589:31216739 1517:20915929 1509:15953143 1468:11588539 1408:16253900 1373:19272145 1263:"Benign" 1176:seminoma 1168:melanoma 1151:cells). 1137:Adenomas 1085:Meninges 923:Squamous 490:, renal 480:hamartin 371:adenomas 265:. 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Index


epidermis
dermis
intradermal nevus
Specialty
Oncology
Pathology
cells
tumor
invade neighboring tissue
metastasize
malignant (cancerous) tumors
growth rate
differentiated
connective tissue
epithelium
moles
uterine fibroids
mass effect
ischemia
necrosis
cranium
respiratory tract
sinus
brain tumors
endocrine
thyroid adenomas
adrenocortical adenomas
hormones
malignant

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