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He later presented with a right perinephric haematoma and an abdominal angiogram revealed multiple microaneurysms of the renal arteries, coeliac trunk and the mesenteric arterial system. The feeding renal artery was embolised. A diagnosis of polyarteritis nodosa was made. The patient was subjected to digital subtraction angiography of neck and intracranial vessels, which revealed multiple microaneurysms in internal and external carotid artery territory. He was discharged with steroids and azathioprine.<\/jats:p>","DOI":"10.1136\/bcr-2015-211940","type":"journal-article","created":{"date-parts":[[2015,12,16]],"date-time":"2015-12-16T12:28:23Z","timestamp":1450268903000},"page":"bcr2015211940","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Mystery of a cryptogenic stroke solved by an abdominal angiogram"],"prefix":"10.1136","volume":"2015","author":[{"given":"Kaushik","family":"Sundar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shankar","family":"Venkatasubramanian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meenakshisundaram","family":"Umaiorubahan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Velmurugendran","family":"Cannigaiper","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,12,16]]},"reference":[{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410250410"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.2","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.30.12.2513"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.3","doi-asserted-by":"publisher","DOI":"10.1161\/hs1201.100209"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.4","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.0000079818.08343.8C"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.5","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.0000129335.28301.f5"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.6","doi-asserted-by":"publisher","DOI":"10.1159\/000047697"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.7","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.24.1.35"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.8","first-page":"484","article-title":"Ueber eine bisher nicht beshriebene eigenthumliche Arterienerkrankung (Periarteritis nodosa), die mit Morbus Brightii und rapid fortschreitender allgemeiner Muskellahmung einhergeht","volume":"1","author":"Kussmaul","year":"1866","journal-title":"Dtsch Arch Klin Med"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.9","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.54.4.883"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.10","doi-asserted-by":"crossref","first-page":"1088","DOI":"10.1002\/art.1780330805","article-title":"The American College of Rheumatology 1990 criteria for the classification of polyarteritis nodosa","volume":"33","author":"Lightfoot","year":"1990","journal-title":"Arthritis Rheum"},{"key":"2025042707512373000_2015.dec16_1.bcr2015211940.11","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1159\/000473419","article-title":"Spontaneous kidney rupture in polyarteritis nodosa. 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