{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T05:39:57Z","timestamp":1774330797496,"version":"3.50.1"},"reference-count":13,"publisher":"Wiley","license":[{"start":{"date-parts":[[2021,11,17]],"date-time":"2021-11-17T00:00:00Z","timestamp":1637107200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Hematology"],"published-print":{"date-parts":[[2021,11,17]]},"abstract":"<jats:p>Factor X deficiency is a rare coagulopathy that can be inherited or acquired. Acquired factor X deficiency has been associated with plasma cell dyscrasias, amyloids, and use of vitamin K antagonists. Of plasma cell dyscrasias, most cases in the literature have been associated with multiple myeloma with or without concomitant AL amyloidosis. Here, we present a rare case of acquired isolated factor X deficiency in an elderly patient with immunoglobulin A (Ig A) monoclonal gammopathy of undetermined significance (MGUS). Herein, we highlight a rare cause of acquired factor X deficiency, and we hope to contribute to the growing literature of plasma cell dyscrasias associated with factor X deficiency.<\/jats:p>","DOI":"10.1155\/2021\/1138329","type":"journal-article","created":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T05:50:08Z","timestamp":1637214608000},"page":"1-3","source":"Crossref","is-referenced-by-count":2,"title":["A Rare Cause of Acquired Factor X Deficiency in an 87-Year-Old Female"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2133-2480","authenticated-orcid":true,"given":"Ayrton","family":"Bangolo","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Trupti","family":"Waykole","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bilal","family":"Niazi","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chandini","family":"Sajja","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahabuba","family":"Akhter","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bhavna","family":"Gupta","sequence":"additional","affiliation":[{"name":"Department of Hematology and Oncology, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sameh","family":"Elias","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, 7600 River Road, North Bergen, NJ 07047, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1054\/blre.2002.0191"},{"key":"2","article-title":"Inherited deficiencies of coagulation factors II, V, V+VIII, VII, X, XI, and XIII.","volume-title":"Williams Hematology, 10e","author":"F. Peyvandi","year":"2021"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1136\/bcr-2019-230249"},{"key":"4","article-title":"Bleeding and thrombotic disorders","volume-title":"Laposata\u2019s Laboratory Medicine: Diagnosis of Disease in the Clinical Laboratory","author":"E. M. Van Cott","year":"2019"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1182\/asheducation-2016.1.663"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1055\/s-0029-1225763"},{"issue":"7","key":"7","first-page":"633","article-title":"Acquired coagulation factor X deficiency: three cases report and literature review","volume":"35","author":"W. Liu","year":"2014","journal-title":"Zhonghua Xue Ye Xue Za Zhi"},{"key":"8","article-title":"Plasma cell neoplasms: general considerations","volume-title":"Williams Hematology, 10e","author":"G. Bianchi","year":"2021"},{"key":"9","article-title":"Essential monoclonal gammopathy","volume-title":"Williams Hematology, 10e","author":"M. A. 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