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Diagnosis of specific aetiology is often overlooked due to lack of clinical suspicion, as a result of incomplete investigations or due to inappropriate imaging. This report presents a case of pulmonary mucormycosis complicated by PAP in a patient with clinically unsuspected, uncontrolled diabetes. We highlight how the combination of heightened clinical suspicion, appropriate imaging and timely intervention helped us to treat a potentially fatal complication in our patient.<\/jats:p>","DOI":"10.1136\/bcr-2025-269672","type":"journal-article","created":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T14:55:53Z","timestamp":1770216953000},"page":"e269672","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Angioinvasive pulmonary mucormycosis presenting with massive haemoptysis secondary to pulmonary artery pseudoaneurysm"],"prefix":"10.1136","volume":"19","author":[{"given":"Sourabh prakash","family":"Kulkarni","sequence":"first","affiliation":[{"name":"Radiology, Narayana Health city, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0220-2584","authenticated-orcid":false,"given":"Venkatraman","family":"Bhat","sequence":"additional","affiliation":[{"name":"Radiology, Narayana Health city, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gadabanahalli","family":"Karthik","sequence":"additional","affiliation":[{"name":"Radiology, Narayana Health city, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muralimohan","family":"BV","sequence":"additional","affiliation":[{"name":"Pulmonary Medicine, Narayana Hrudayalaya Health City, Bengaluru, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,2,4]]},"reference":[{"key":"2026020406552612000_19.2.e269672.1","doi-asserted-by":"crossref","first-page":"352","DOI":"10.1016\/j.clinimag.2015.01.013","article-title":"Imaging of vascular pseudoaneurysms in the thorax and abdomen","volume":"39","author":"Shuaib","year":"2015","journal-title":"Clin Imaging"},{"key":"2026020406552612000_19.2.e269672.2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.05.1652"},{"key":"2026020406552612000_19.2.e269672.3","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-971202"},{"key":"2026020406552612000_19.2.e269672.4","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2333040031"},{"key":"2026020406552612000_19.2.e269672.5","unstructured":"Fraser RS , Colman NL . 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