{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T13:12:05Z","timestamp":1788786725503,"version":"build-2803163510"},"reference-count":11,"publisher":"BMJ","issue":"9","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2026,8,22]]},"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:p>A woman in her 30s presented with recurrent massive haemoptysis and chronic respiratory symptoms, including fever, cough and breathlessness. She had previously received empirical anti-tubercular therapy without microbiological confirmation or clinical improvement. CT angiography revealed right pulmonary artery atresia with extensive bronchial and non-bronchial systemic collaterals, a partially thrombosed pseudoaneurysm arising from a left lower lobe segmental branch with associated pulmonary infarction and bilateral bronchiectatic changes. She underwent embolisation of the pseudoaneurysm and selected systemic collaterals. Subsequently, she developed progressive hypoxaemic respiratory failure and succumbed to her illness. This case highlights delayed recognition of unilateral pulmonary artery atresia in adulthood and the challenge of controlling life-threatening haemoptysis while preserving pulmonary perfusion.<\/jats:p>","DOI":"10.1136\/bcr-2026-274601","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T12:55:16Z","timestamp":1788785716000},"page":"e274601","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Massive haemoptysis in a patient with right pulmonary artery atresia with contralateral pulmonary artery pseudoaneurysm: a therapeutic dilemma in collateral-dependent pulmonary circulation"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3337-626X","authenticated-orcid":false,"given":"Saby Anna","family":"Kunjumon","sequence":"first","affiliation":[{"name":"Pulmonary Medicine, AIIMS Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Upendra","family":"Panday","sequence":"additional","affiliation":[{"name":"Pulmonary Medicine, AIIMS Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pranshu Kumar","family":"Singh","sequence":"additional","affiliation":[{"name":"Pulmonary Medicine, AIIMS Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Girish","family":"Sindhwani","sequence":"additional","affiliation":[{"name":"Pulmonary Medicine, AIIMS Rishikesh, Rishikesh, Uttarakhand, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,9,7]]},"reference":[{"key":"2026090705550953000_19.9.e274601.1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.122.4.1471"},{"key":"2026090705550953000_19.9.e274601.2","doi-asserted-by":"publisher","DOI":"10.1378\/chest.108.3.670"},{"key":"2026090705550953000_19.9.e274601.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.acvd.2013.05.004"},{"key":"2026090705550953000_19.9.e274601.4","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(62)90248-5"},{"key":"2026090705550953000_19.9.e274601.5","first-page":"597","article-title":"Isolated unilateral absence of the pulmonary artery: review of the world literature and guidelines for surgical repair","volume":"42","author":"Shakibi","year":"1978","journal-title":"Am J Cardiol"},{"key":"2026090705550953000_19.9.e274601.6","first-page":"1744","article-title":"Hemoptysis in unilateral absence of pulmonary artery: surgical and endovascular treatment strategies","volume":"92","author":"Bockeria","year":"2011","journal-title":"Ann Thorac Surg"},{"key":"2026090705550953000_19.9.e274601.7","first-page":"157","article-title":"Pulmonary artery aneurysms and pseudoaneurysms","volume":"9","author":"Remy","year":"1999","journal-title":"Eur Radiol"},{"key":"2026090705550953000_19.9.e274601.8","first-page":"4126","article-title":"Pulmonary artery pseudoaneurysm: contemporary diagnostic and endovascular management review","volume":"14","author":"Gupta","year":"2022","journal-title":"J Clin Med"},{"key":"2026090705550953000_19.9.e274601.9","doi-asserted-by":"crossref","first-page":"102","DOI":"10.1111\/chd.12316","article-title":"Aneurysm of the Pulmonary Artery, a Systematic Review and Critical Analysis of Current Literature","volume":"11","author":"Duijnhouwer","year":"2016","journal-title":"Congenit Heart Dis"},{"key":"2026090705550953000_19.9.e274601.10","doi-asserted-by":"publisher","DOI":"10.5152\/dir.2017.16454"},{"key":"2026090705550953000_19.9.e274601.11","doi-asserted-by":"publisher","DOI":"10.1007\/s00270-009-9788-z"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2026-274601","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T12:55:17Z","timestamp":1788785717000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2026-274601"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9]]},"references-count":11,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2026,9,7]]},"published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1136\/bcr-2026-274601"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2026-274601","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9]]}}}