PMID- 33994447 OWN - NLM STAT- MEDLINE DCOM- 20210518 LR - 20231111 IS - 1349-7235 (Electronic) IS - 0918-2918 (Print) IS - 0918-2918 (Linking) VI - 60 IP - 10 DP - 2021 TI - Aplastic Anemia in a Patient with Cronkhite-Canada Syndrome. PG - 1601-1605 LID - 10.2169/internalmedicine.6468-20 [doi] AB - Cronkhite-Canada syndrome (CCS) is a rare polyposis disorder accompanied by alopecia and onychodystrophy. A 63-year-old man with a history of CCS and repeated embolism developed progressive thrombocytopenia and mild anemia. Laboratory testing, a bone marrow examination, and magnetic resonance imaging of the spine resulted in a diagnosis of concurrent aplastic anemia (AA). Paroxysmal nocturnal hemoglobinuria (PNH)-type cells were detected in a peripheral blood specimen. In addition, human leukocyte antigen (HLA) included DRB1*15:01 and DRB1*15:02. Mesalazine was discontinued in consideration of possible drug-induced pancytopenia. Immunosuppressive therapy ameliorated both the gastrointestinal symptoms of CCS and pancytopenia. A common autoimmune abnormality might underlie both CCS and AA. FAU - Kidoguchi, Keisuke AU - Kidoguchi K AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Kubota, Yasushi AU - Kubota Y AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. AD - Department of Transfusion Medicine, Saga University Hospital, Japan. FAU - Fujimoto, Shun AU - Fujimoto S AD - Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Sakata, Yasuhisa AU - Sakata Y AD - Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Kizuka-Sano, Haruna AU - Kizuka-Sano H AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Yamaguchi, Kyosuke AU - Yamaguchi K AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Ureshino, Hiroshi AU - Ureshino H AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Katsuya, Hiroo AU - Katsuya H AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Ando, Toshihiko AU - Ando T AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Esaki, Motohiro AU - Esaki M AD - Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. FAU - Kimura, Shinya AU - Kimura S AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Japan. LA - eng PT - Case Reports PT - Journal Article DEP - 20210515 PL - Japan TA - Intern Med JT - Internal medicine (Tokyo, Japan) JID - 9204241 RN - 0 (Histocompatibility Antigens Class I) RN - 4Q81I59GXC (Mesalamine) SB - IM MH - *Anemia, Aplastic/complications/diagnosis MH - *Hemoglobinuria, Paroxysmal/complications/diagnosis MH - Histocompatibility Antigens Class I MH - Humans MH - *Intestinal Polyposis/complications/diagnosis MH - Male MH - Mesalamine MH - Middle Aged PMC - PMC8188031 OTO - NOTNLM OT - Cronkhite-Canada syndrome OT - aplastic anemia OT - autoimmune disorder OT - human leukocyte antigen OT - paroxysmal nocturnal hemoglobinuria COIS- The authors state that they have no Conflict of Interest (COI). EDAT- 2021/05/18 06:00 MHDA- 2021/05/19 06:00 PMCR- 2021/05/15 CRDT- 2021/05/17 05:52 PHST- 2021/05/17 05:52 [entrez] PHST- 2021/05/18 06:00 [pubmed] PHST- 2021/05/19 06:00 [medline] PHST- 2021/05/15 00:00 [pmc-release] AID - 10.2169/internalmedicine.6468-20 [doi] PST - ppublish SO - Intern Med. 2021;60(10):1601-1605. doi: 10.2169/internalmedicine.6468-20. Epub 2021 May 15.