{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,10]],"date-time":"2025-11-10T20:59:34Z","timestamp":1762808374146,"version":"3.44.0"},"reference-count":5,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2015,11,7]]},"abstract":"<jats:p>A 60-year-old Japanese man presented with bloody diarrhoea. He stated that he had been diagnosed with ulcerative colitis (UC) 3\u2005years prior, but discontinued follow-up care as treatment was ineffective. One year later, he came to our hospital with anorexia and weight loss. The abdomen was soft and flat without tenderness. Laboratory tests were unremarkable; faecal culture and <jats:italic>Clostridium difficile<\/jats:italic> toxin were negative. Findings and biopsy from a subsequent colonoscopy reconfirmed his diagnosis of UC. Neither mesalazine, which was initially prescribed, nor additional treatments improved his symptoms. Repeat colonoscopy, performed 5\u2005months later, demonstrated similar findings in the same area. Although the pathology remained consistent with UC, multiple treatment failures suggested ongoing occult infection. Additional testing revealed positive <jats:italic>Entamoeba histolytica<\/jats:italic> antibody. 14\u2005days of metronidazole dramatically improved his symptoms. He has remained asymptomatic after 2\u2005years.<\/jats:p>","DOI":"10.1136\/bcr-2015-212102","type":"journal-article","created":{"date-parts":[[2015,11,25]],"date-time":"2015-11-25T08:57:35Z","timestamp":1448441855000},"page":"bcr2015212102","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":9,"title":["Amoebiasis masquerading as inflammatory bowel disease"],"prefix":"10.1136","volume":"2015","author":[{"given":"Yo","family":"Den","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, Urayasu, Chiba, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junji","family":"Kinoshita","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, Urayasu, Chiba, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gautam A","family":"Deshpande","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, University of Hawaii, Honolulu, Hawaii, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eiji","family":"Hiraoka","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, Urayasu, Chiba, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,11,25]]},"reference":[{"key":"2025082800323166000_2015.nov25_1.bcr2015212102.1","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.16.4.713-729.2003"},{"key":"2025082800323166000_2015.nov25_1.bcr2015212102.2","first-page":"303","article-title":"The association of the amoebic colitis and chronic ulcerative colitis","volume":"36","author":"Chan","year":"1995","journal-title":"Singapore Med J"},{"key":"2025082800323166000_2015.nov25_1.bcr2015212102.3","doi-asserted-by":"publisher","DOI":"10.1055\/s-0031-1291631"},{"key":"2025082800323166000_2015.nov25_1.bcr2015212102.4","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1590\/S0043-31442005000300011","article-title":"Differentiating amoebic ulcero-haemorrhagic recto-colitis from idiopathic inflammatory bowel disease: still a diagnostic dilemma","volume":"54","author":"Ibrahim","year":"2005","journal-title":"West Indian Med J"},{"key":"2025082800323166000_2015.nov25_1.bcr2015212102.5","doi-asserted-by":"publisher","DOI":"10.1007\/s00384-014-2040-6"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2015-212102","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T07:32:37Z","timestamp":1756366357000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2015-212102"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,11,25]]},"references-count":5,"alternative-id":["10.1136\/bcr-2015-212102"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2015-212102","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2015,11,25]]}}}