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Asplenia

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In an emergency room or hospital setting, appropriate evaluation and treatment for an asplenic febrile patient should include a complete blood count with differential, blood culture with Gram stain, arterial blood gas analysis, chest x-ray, and consideration for lumbar puncture with CSF studies. None
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is a rare tickborne infection. Patients should check themselves or have themselves inspected for tick bites if they are in an at-risk situation. Presentation with fever, fatigue, and haemolytic anaemia requires diagnostic confirmation by identifying the parasites within red blood cells on blood film
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Patients who have some form of asplenia have an increased susceptibility to these encapsulated bacterial infections mainly because they lack IgM memory B cells and their non-adherence to polysaccharide vaccines. Furthermore, there is a deficiency of other splenic cells e.g. splenic macrophages. This
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should be included if visiting countries of particular risk (e.g. sub-saharan Africa). The non-conjugated Meningitis A and C vaccines usually used for this purpose give only 3 years coverage and provide less-effective long-term cover for Meningitis C than the conjugated form already mentioned.
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Functional asplenia can occur when patients with metabolic or haematological disorders have their splenic tissue organisation altered. This can lead to results similar to those seen in patients who have undergone a splenectomy e.g. becoming infected with encapsulated bacteria such as
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The risk to asplenic patients has been expressed as equivalent to an adult dying in a road traffic accident (1 to 5 percent of people without spleens would develop a severe infection per decade) (reference UK Splenectomy Trust Advice)—hence sensible precautions are advisable.
243:. This may be particularly important in poorer countries where protective measures for patients with asplenia are not available. However, it has been advised that preoperative vaccination is advisable until the remnant splenic tissue can reestablish its function. 399:, especially if not received in adolescence. Previously vaccinated adults require a single booster and non-immunised adults advised, in UK since 2006, to have two doses given two months apart. Children too young for the conjugate vaccine should receive 430:, and succumbing to its effects. Travel to malarial areas will carry greater risks and is best avoided. Travellers should take the most appropriate anti-malarial prophylaxis medication and be extra vigilant over measures to prevent mosquito bites. 393:, especially if not received in childhood. For adults who have not been previously vaccinated, two doses given two months apart was advised in the new 2006 UK vaccination guidelines (in the UK may be given as a combined Hib/MenC vaccine). 433:
The pneumococcal vaccinations may not cover some of the other strains of pneumococcal bacteria present in other countries. Likewise, their antibiotic resistance may also vary, requiring a different choice of stand-by antibiotic.
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The increased risk of infection is due to inability to clear opsonised bacteria from circulating blood. There is also a deficiency of T-cell independent antibodies, such as those reactive to the polysaccharide capsule of
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In an effort to preserve some of the spleen's protective roles, attempts are now often made to preserve a small part of the spleen when performing either surgical subtotal (partial) splenectomy, or partial splenic
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guidelines state that antibiotics should be administered to a patient suspected of sepsis within 1 hour of presentation. Delay in starting antibiotics for any reason is associated with a poor outcome.
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which says that they do not have a working spleen. This would alert a healthcare professional to take rapid action if they become seriously ill and cannot notify them of their condition.
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Bader-Meunier B, Gauthier F, Archambaud F, et al. (2001). "Long-term evaluation of the beneficial effect of subtotal splenectomy for management of hereditary spherocytosis".
1603: 2102: 1806: 215:: unknown physiopathology. In a 1970 study, it was the second most common cause of abnormalities of red blood cells linked to hyposplenism, after surgical splenectomy. 1424: 550: 1181:"The prevention and treatment of infection in patients with an absent or dysfunctional spleen - British Committee for Standards in Haematology Guideline up-date" 90:
occurs when splenic tissue is present but does not work well (e.g. sickle-cell disease, polysplenia) – such patients are managed as if asplenic – while in
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Davies JM, Barnes R, Milligan D, British Committee for Standards in Haematology - Working Party of the Haematology-Oncology Task Force (2002).
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It is suggested that splenectomized persons receive the following vaccinations, and ideally prior to planned splenectomy surgery:
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Ferguson, Anne; Hutton, MargaretM.; Maxwell, J.D.; Murray, D. (January 1970). "Adult Cœlicac Diseases in Hyposplenic Patients".
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Pratl B, Benesch M, Lackner H, et al. (2007). "Partial splenic embolization in children with hereditary spherocytosis".
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and patients due to the complications resulting from antibiotic prophylaxis such as development of an overpopulation of
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combined with the lack of B cells can provide an environment favourable for the development of bacterial infections.
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Online Mendelian Inheritance in Man. OMIM entry 208530: Right atrial isomerism; RAI. Johns Hopkins University.
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Diagnosis is confirmed by abdominal ultrasonography and detection of Howell-Jolly bodies in red blood cells.
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Working Party of the British Committee for Standards in Haematology Clinical Haematology Task Force (1996).
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of these evaluations should delay the initiation of appropriate broad-spectrum intravenous antibiotics. The
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Those with asplenia are also cautioned to start a full-dose course of antibiotics at the first onset of an
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is used to describe reduced ('hypo-') splenic functioning, but not as severely affected as with asplenism.
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Kasper, D. et al (2015) Harrison's principles of internal medicine. New York, NY: McGraw-Hill Education
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Brigden, M. L. (2001). "Detection, education and management of the asplenic or hyposplenic patient".
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Grosfeld JL, Ranochak JE (1976). "Are hemisplenectomy and/or primary splenic repair feasible?".
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Xiros, Nikolao (March 2000). "Splenectomy in patients with malignant non‐Hodgkin's lymphoma".
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Kimber C, Spitz L, Drake D, et al. (1998). "Elective partial splenectomy in childhood".
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after a surgical splenectomy, or starting at birth for congenital or functional asplenia.
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In addition to the normal immunizations advised for the countries to be visited, Group A
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Because of the increased risk of infection, physicians administer oral antibiotics as
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Professional Letter: Chief Medical Officer - Current Vaccine and Immunization Issues
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Haemophilus influenzae, Streptococcus pneumoniae and Neisseria meningitidis.
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After splenectomy with the goal of arresting the progression of cancers (
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of interfering with splenic function, as a treatment for diseases (e.g.
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Halfdanarson, T. R.; Litzow, M. R.; Murray, J. A. (15 January 2007).
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This article is about the medical condition. For the moth genus, see
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Joint Committee on Vaccination and Immunisation (21 December 2006).
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Those lacking a functional spleen are at higher risk of contracting
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protocols have been established, but are often poorly adhered to by
480: 1734: 2265: 2155: 1969: 1859: 1720: 484: 427: 2110: 1814: 1723: 1717: 1546:"The incidence of malaria after splenectomy in Papua New Guinea" 530: 2120: 1824: 1678: 848: 548: 529:
Online Mendelian Inheritance in Man. Johns Hopkins University.
256: 183:), in which the spleen's usual activity exacerbates the disease 74: 497:- People without a working spleen can carry a card, or wear a 77:
function and is associated with some serious infection risks.
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is rare. There are two distinct types of genetic disorders:
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Immunization against infectious disease - 'The Green Book'
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can be seen in individuals without a functioning spleen.
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Partial splenectomy and preservation of splenic function
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Sheikha AK, Salih ZT, Kasnazan KH, et al. (2007).
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OMIM entry 271400: Asplenia, isolated congenital; ICAS.
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Due to underlying diseases that destroy the spleen (
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if they did not complete the full childhood series.
315:To minimise the risks associated with splenectomy, 1513:"Meningococcal immunisation for asplenic patients" 1371:Huebner, Mitchell; Kristin, Kristin (July 2015). 2378: 1586: 975: 813: 1071:. Splenectomy Trust. March 2002. Archived from 1370: 1039: 1037: 1009: 1007: 673:"Hematologic manifestations of celiac disease" 2096: 1800: 1219:- published as a response by original authors 1543: 1430:Immunisation Against Infectious Disease 2006 1418: 1416: 1377:Baylor University Medical Center Proceedings 1222: 928: 885: 842: 283:. The risk is elevated as much as 350–fold. 1537: 1034: 1004: 969: 2103: 2089: 1807: 1793: 1294: 1125: 1123: 581: 59: 1569: 1413: 1396: 1320: 1257: 1204: 1178: 1155: 952: 807: 790: 772: 754: 696: 523: 512: 336: 549:Leukemia & Lymphoma Society (2017). 458:and should receive a five-day course of 1288: 1172: 1120: 1013: 358:Overwhelming post-splenectomy infection 265:overwhelming post splenectomy infection 14: 2379: 2184:Asplenia with cardiovascular anomalies 1888:Asplenia with cardiovascular anomalies 1544:Boone KE, Watters DA (November 1995). 1346:"Asplenia Poses Management Challenges" 437: 219: 2256:Intranodal palisaded myofibroblastoma 2084: 1960:Intranodal palisaded myofibroblastoma 1788: 1344:Wick, Jeannette (September 1, 2006). 1179:Davies JM; et al. (2001-06-02). 627: 391:Haemophilus influenzae type b vaccine 1343: 582:Lowenbraun, Stanley (January 1971). 491:) is usually an effective treatment. 466:in patients allergic to penicillin). 401:meningococcal polysaccharide vaccine 261:polysaccharide encapsulated bacteria 381:Pneumococcal polysaccharide vaccine 173:idiopathic thrombocytopenic purpura 24: 1636:from the original on 2 August 2019 413: 25: 2403: 1652: 1492:from the original on 26 July 2020 761:World Journal of Gastroenterology 354:lower respiratory tract infection 2359:Postmastectomy lymphangiosarcoma 2327:Lymphedema–distichiasis syndrome 2063:Postmastectomy lymphangiosarcoma 2031:Lymphedema–distichiasis syndrome 1488:. 24 August 2009 . p. 244. 1436:. Edinburgh: Stationery Office. 1348:. Pharmacy Times. Archived from 1108:from the original on 9 July 2021 906:10.1111/j.1600-0609.2007.00979.x 642:10.1034/j.1600-0609.2000.90079.x 588:The American Journal of Medicine 73:refers to the absence of normal 1617: 1606:from the original on 2012-03-04 1504: 1466: 1364: 1337: 1090: 1058: 1049: 894:European Journal of Haematology 630:European Journal of Haematology 397:Meningococcal conjugate vaccine 371: 97:, the spleen itself is absent. 2272:Template:Respiratory pathology 1976:Template:Respiratory pathology 1511:Chief Medical Officer (2001). 1389:10.1080/08998280.2015.11929267 748: 713: 664: 621: 575: 551:"Chronic Lymphocytic Leukemia" 542: 444:Surgical and dental procedures 385:pneumococcal conjugate vaccine 13: 1: 1301:Journal of Clinical Pathology 990:10.1016/S0022-3468(98)90651-0 828:10.1016/S0022-3468(76)80198-4 734:10.1016/S0140-6736(70)90405-8 505: 310: 105: 1462:see pages 50-1 and table 7.1 1250:10.7861/clinmedicine.2-5-440 978:Journal of Pediatric Surgery 755:Tarantino, Giovanni (2013). 689:10.1182/blood-2006-07-031104 600:10.1016/0002-9343(71)90204-X 556:. p. 15. Archived from 302: 188:Chronic lymphocytic leukemia 145:occurs for several reasons: 123:isolated congenital asplenia 7: 2354:Postinflammatory lymphedema 2246:Generalized lymphadenopathy 2114:: organ and vessel diseases 2058:Postinflammatory lymphedema 1950:Generalized lymphadenopathy 1818:: organ and vessel diseases 1066:"Splenectomy and Infection" 941:Canadian Journal of Surgery 499:special bracelet or necklet 167:After splenectomy with the 134: 10: 2408: 1624:HSC Public Health Agency. 31:. For the fern genus, see 26: 2282: 2231: 2169: 2119: 1986: 1935: 1873: 1823: 1744: 1660: 1626:"Splenectomy wallet card" 1562:10.1136/bmj.311.7015.1273 1526:. Department of Health: 4 1016:American Family Physician 455:Capnocytophaga canimorsus 366:Surviving Sepsis Campaign 333:in the intestinal tract. 297:Increased platelet counts 255:, increasing the risk of 194:(starting in the 1970s), 100: 48: 43: 1630:HSC Public Health Agency 1197:10.1136/bmj.312.7028.430 1148:10.1136/bmj.312.7028.430 774:10.3748/wjg.v19.i23.3534 289:Streptococcus pneumoniae 270:Streptococcus pneumoniae 246: 2387:Immune system disorders 863:10.1182/blood.V97.2.399 460:amoxicillin/clavulanate 1098:"Asplenia/Hyposplenia" 337:Antibiotic prophylaxis 276:Haemophilus influenzae 251:Asplenia is a form of 2312:Congenital lymphedema 2016:Congenital lymphedema 1102:Unbound Medicine, Inc 330:Clostridium difficile 2349:Factitial lymphedema 2339:Secondary lymphedema 2053:Factitial lymphedema 2043:Secondary lymphedema 1373:"Asplenia and fever" 1313:10.1136/jcp.54.3.214 263:, and can result in 196:non-Hodgkin lymphoma 2251:Castleman's disease 1955:Castleman's disease 1295:Waghorn DJ (2001). 1022:(3): 499–506, 508. 438:Additional measures 220:Functional asplenia 207:sickle-cell disease 119:heterotaxy syndrome 2392:Diseases of spleen 2344:Bullous lymphedema 2317:Lymphedema praecox 2307:Primary lymphedema 2218:Splenic infarction 2048:Bullous lymphedema 2021:Lymphedema praecox 2011:Primary lymphedema 1922:Splenic infarction 1745:External resources 1450:on 2 December 2008 536:2022-01-22 at the 2374: 2373: 2284:Lymphatic vessels 2144:DiGeorge syndrome 2112:Lymphatic disease 2078: 2077: 1988:Lymphatic vessels 1848:DiGeorge syndrome 1816:Lymphatic disease 1782: 1781: 1443:978-0-11-322528-6 1352:on April 12, 2013 1238:Clinical Medicine 728:(7639): 163–164. 487:(with or without 407:Influenza vaccine 192:Hodgkin's disease 68: 67: 38:Medical condition 16:(Redirected from 2399: 2366:Waldmann disease 2332:Milroy's disease 2322:Lymphedema tarda 2297:Lymphangiectasia 2211:Banti's syndrome 2201:Wandering spleen 2191:Accessory spleen 2161:Thymic carcinoma 2105: 2098: 2091: 2082: 2081: 2070:Waldmann disease 2036:Milroy's disease 2026:Lymphedema tarda 2001:Lymphangiectasia 1915:Banti's syndrome 1905:Wandering spleen 1895:Accessory spleen 1865:Thymic carcinoma 1809: 1802: 1795: 1786: 1785: 1658: 1657: 1646: 1645: 1643: 1641: 1621: 1615: 1614: 1612: 1611: 1601: 1593: 1584: 1583: 1573: 1541: 1535: 1534: 1532: 1531: 1517: 1508: 1502: 1501: 1499: 1497: 1487: 1478: 1470: 1464: 1459: 1457: 1455: 1446:. 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1260: 1255: 1251: 1247: 1243: 1239: 1232: 1225: 1216: 1212: 1207: 1202: 1198: 1194: 1190: 1186: 1182: 1175: 1167: 1163: 1158: 1153: 1149: 1145: 1141: 1137: 1133: 1126: 1124: 1107: 1103: 1099: 1093: 1078:on 2007-09-28 1074: 1067: 1061: 1052: 1045: 1040: 1038: 1029: 1025: 1021: 1017: 1010: 1008: 999: 995: 991: 987: 983: 979: 972: 964: 960: 955: 950: 946: 942: 938: 931: 923: 919: 915: 911: 907: 903: 899: 895: 888: 880: 876: 872: 868: 864: 860: 856: 852: 845: 837: 833: 829: 825: 822:(3): 419–24. 821: 817: 810: 802: 798: 793: 788: 784: 780: 775: 770: 766: 762: 758: 751: 743: 739: 735: 731: 727: 723: 716: 708: 704: 699: 694: 690: 686: 682: 678: 674: 667: 659: 655: 651: 647: 643: 639: 636:(3): 145–50. 635: 631: 624: 609: 605: 601: 597: 593: 589: 585: 578: 559: 552: 545: 539: 535: 532: 526: 520: 515: 511: 500: 496: 495:Alert warning 493: 490: 486: 482: 477: 476: 471: 468: 465: 461: 457: 456: 451: 448: 445: 442: 441: 435: 431: 429: 424: 421: 420:meningococcus 408: 405: 402: 398: 395: 392: 389: 386: 382: 379: 378: 377: 369: 367: 361: 359: 355: 351: 346: 344: 334: 332: 331: 326: 322: 318: 308: 300: 298: 292: 290: 284: 282: 281:meningococcus 278: 277: 272: 271: 266: 262: 258: 254: 244: 242: 231: 228: 214: 211: 208: 204: 200: 197: 193: 189: 185: 182: 181:spherocytosis 178: 174: 170: 166: 164: 160: 156: 152: 148: 147: 146: 144: 142: 130: 127: 124: 120: 116: 114: 110: 109: 98: 96: 94: 89: 87: 82: 80: 76: 72: 62: 56: 53: 51: 47: 42: 34: 30: 19: 2292:Lymphangitis 2206:Splenomegaly 2178: 1996:Lymphangitis 1910:Splenomegaly 1882: 1766: 1752: 1728: 1711: 1692: 1673: 1638:. 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Belfast. 489:clindamycin 343:prophylaxis 321:vaccination 177:thalassemia 151:splenectomy 129:polysplenia 2381:Categories 2302:Lymphedema 2233:Lymph node 2139:Hypoplasia 2006:Lymphedema 1937:Lymph node 1843:Hypoplasia 1768:Patient UK 1610:2009-10-09 1530:2009-11-07 1496:7 November 1281:2010-02-01 1082:2006-12-12 722:The Lancet 506:References 475:Babesiosis 470:Tick bites 325:physicians 317:antibiotic 311:Management 149:Following 113:Congenital 106:Congenital 86:Functional 1754:eMedicine 1735:707147002 1730:SNOMED CT 783:1007-9327 303:Diagnosis 50:Specialty 33:Asplenium 2179:Asplenia 1883:Asplenia 1773:Asplenia 1762:radio/58 1640:1 August 1634:Archived 1604:Archived 1490:Archived 1407:26130882 1331:11253134 1268:12448592 1106:Archived 1028:11272299 963:18031639 922:41343243 914:18028435 879:22741973 871:11154215 801:23801854 707:16973955 658:20986297 650:10997879 534:Archived 481:serology 205:), e.g. 143:asplenia 141:Acquired 135:Acquired 115:asplenia 95:asplenia 93:anatomic 88:asplenia 71:Asplenia 44:Asplenia 2266:Tonsils 2156:Thymoma 2129:Abscess 1970:Tonsils 1860:Thymoma 1833:Abscess 1759:ped/150 1721:%271400 1580:7496237 1571:2551185 1454:22 July 1398:4462215 1356:18 June 1322:1731383 1259:4953085 1215:8601117 1206:2350106 1166:8601117 1157:2350106 998:9660206 954:2386178 792:3691032 742:4189238 698:1785098 613:18 June 608:5539576 567:18 June 485:Quinine 428:malaria 153:due to 2171:Spleen 2121:Thymus 1875:Spleen 1825:Thymus 1724:208540 1718:208530 1707:759.01 1703:289.59 1578:  1568:  1440:  1405:  1395:  1329:  1319:  1266:  1256:  1213:  1203:  1164:  1154:  1112:9 July 1026:  996:  961:  951:  920:  912:  877:  869:  836:957066 834:  799:  789:  781:  740:  705:  695:  656:  648:  606:  279:, and 257:sepsis 159:trauma 101:Causes 75:spleen 57:  1688:Q89.0 1684:D73.0 1600:(PDF) 1516:(PDF) 1486:(PDF) 1477:(PDF) 1434:(PDF) 1275:(PDF) 1234:(PDF) 1076:(PDF) 1069:(PDF) 1046:2006. 918:S2CID 875:S2CID 851:Blood 677:Blood 654:S2CID 561:(PDF) 554:(PDF) 350:upper 259:from 247:Risks 163:tumor 157:from 2270:see 1974:see 1713:OMIM 1698:9-CM 1642:2019 1576:PMID 1498:2009 1456:2007 1438:ISBN 1403:PMID 1358:2018 1327:PMID 1264:PMID 1211:PMID 1162:PMID 1114:2021 1024:PMID 994:PMID 959:PMID 910:PMID 867:PMID 832:PMID 797:PMID 779:ISSN 738:PMID 703:PMID 646:PMID 615:2018 604:PMID 569:2018 319:and 169:goal 121:and 1694:ICD 1675:ICD 1566:PMC 1558:doi 1554:311 1550:BMJ 1393:PMC 1385:doi 1317:PMC 1309:doi 1254:PMC 1246:doi 1201:PMC 1193:doi 1189:312 1185:BMJ 1152:PMC 1144:doi 1140:312 1136:BMJ 986:doi 949:PMC 902:doi 859:doi 824:doi 787:PMC 769:doi 730:doi 726:295 693:PMC 685:doi 681:109 638:doi 596:doi 352:or 2383:: 1771:: 1757:: 1733:: 1716:: 1705:, 1701:: 1686:, 1682:: 1679:10 1628:. 1588:^ 1574:. 1564:. 1552:. 1548:. 1522:. 1518:. 1479:. 1460:- 1415:^ 1401:. 1391:. 1381:28 1379:. 1375:. 1325:. 1315:. 1305:54 1303:. 1299:. 1262:. 1252:. 1240:. 1236:. 1209:. 1199:. 1187:. 1183:. 1160:. 1150:. 1138:. 1134:. 1122:^ 1104:. 1100:. 1036:^ 1020:63 1018:. 1006:^ 992:. 982:33 980:. 957:. 945:50 943:. 939:. 916:. 908:. 898:80 896:. 873:. 865:. 855:97 853:. 830:. 820:11 818:. 795:. 785:. 777:. 765:19 763:. 759:. 736:. 724:. 701:. 691:. 679:. 675:. 652:. 644:. 634:64 632:. 602:. 592:50 590:. 586:. 483:. 472:- 360:. 291:. 273:, 190:, 179:, 175:, 2104:e 2097:t 2090:v 1808:e 1801:t 1794:v 1696:- 1677:- 1667:D 1644:. 1613:. 1582:. 1560:: 1533:. 1524:1 1500:. 1458:. 1409:. 1387:: 1360:. 1333:. 1311:: 1284:. 1248:: 1242:2 1217:. 1195:: 1168:. 1146:: 1116:. 1085:. 1030:. 1000:. 988:: 965:. 924:. 904:: 881:. 861:: 838:. 826:: 803:. 771:: 744:. 732:: 709:. 687:: 660:. 640:: 617:. 598:: 571:. 462:( 209:. 198:) 125:. 35:. 20:)

Index

Hyposplenism
Asplenia (moth)
Asplenium
Specialty
Medical genetics
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spleen
Congenital
heterotaxy syndrome
isolated congenital asplenia
polysplenia
Acquired
splenectomy
splenic rupture
trauma
tumor
idiopathic thrombocytopenic purpura
thalassemia
spherocytosis
Chronic lymphocytic leukemia
Hodgkin's disease
non-Hodgkin lymphoma
autosplenectomy
sickle-cell disease
Celiac disease
embolization
immunodeficiency
sepsis
polysaccharide encapsulated bacteria
overwhelming post splenectomy infection

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