{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,4]],"date-time":"2025-09-04T13:57:34Z","timestamp":1756994254430,"version":"3.40.4"},"reference-count":17,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2015,11,8]]},"abstract":"<jats:p>The authors present a case of a 24-year-old man with infectious mononucleosis (IM) due to Epstein-Barr virus (EBV). Among his symptoms, he reported abdominal pain in the upper left quadrant. An abdominal ultrasound and CT revealed an extensive splenic infarction. During the acute stage of this disease, the thrombophilic screening revealed reduced free protein S and elevated factor VIII, with normalisation on re-evaluation 6\u2005weeks later. Splenic infarction is a very rare complication of IM due to EBV but should be considered in patients presenting abdominal pain. A hypercoagulability state should be investigated. To our knowledge, this is the first described case of a splenic infarction in a patient with IM due to EBV associated with a transient reduction of protein S and elevation of factor VIII. Thus, this work promotes the importance of including these factors in the thrombophilic screening conducted during the investigation of similar cases.<\/jats:p>","DOI":"10.1136\/bcr-2015-212428","type":"journal-article","created":{"date-parts":[[2015,11,25]],"date-time":"2015-11-25T13:57:35Z","timestamp":1448459855000},"page":"bcr2015212428","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":12,"title":["The unexpected finding of a splenic infarction in a patient with infectious mononucleosis due to Epstein-Barr virus"],"prefix":"10.1136","volume":"2015","author":[{"given":"Catarina","family":"Machado","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joana","family":"Melo Salgado","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leonor","family":"Monjardino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,11,25]]},"reference":[{"key":"2025042707412299000_2015.nov25_1.bcr2015212428.1","doi-asserted-by":"crossref","unstructured":"Johannsen EC , Kaye KM . Epstein-Barr virus (infectious mononucleosis, Epstein-Barr virus-associated malignant diseases, and other diseases. In: Bennet JA , Dolin R , Blaser MJ, eds . Mandell, douglas, and bennett's principles and practice of infectious diseases eight edition. 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