{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T08:10:03Z","timestamp":1756282203997,"version":"3.44.0"},"reference-count":11,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:p>We describe the case of a previously well young man who presented acutely to hospital with a history of progressive chest symptoms and systemic upset. At admission, clinical evidence of left upper lobe collapse on respiratory examination and chest x-ray gave rise to significant clinical concern. Initial assessment by CT suggested a possible aspirated foreign body in the left upper lobe bronchus with distal left upper lobe collapse. Subsequent rigid bronchoscopy identified a solid abnormality totally occluding the left upper lobe bronchus, which did not appear to be a foreign body. The patient became progressively more unwell with clinical signs of chest sepsis and failed to settle with medical therapy. A decision was made to undertake a lobectomy to remove the collapsed lobe and obstructing endobronchial lesion. Histology confirmed that the cause of bronchial obstruction was a mesenchymoma (pulmonary hamartoma).<\/jats:p>","DOI":"10.1136\/bcr-2012-007766","type":"journal-article","created":{"date-parts":[[2013,1,10]],"date-time":"2013-01-10T09:31:22Z","timestamp":1357810282000},"page":"bcr2012007766","source":"Crossref","is-referenced-by-count":1,"title":["An unusual bronchial obstruction in a fit young man"],"prefix":"10.1136","volume":"2013","author":[{"given":"Anna","family":"Freeman","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Weeden","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jane","family":"Wilkinson","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramesh J","family":"Kurukulaaratchy","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, Southampton General Hospital, Tremona Road, Southampton, Hampshire, SO16 6YD, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2013,1,9]]},"reference":[{"key":"2025082700312514000_2013.jan09_1.bcr2012007766.1","doi-asserted-by":"crossref","first-page":"745","DOI":"10.1097\/00004728-198310000-00001","article-title":"Computed tomography of lobar collapse: 1 endobronchial obstruction","volume":"7","author":"Naidich","year":"1983","journal-title":"J Comput Assist Tomogr"},{"key":"2025082700312514000_2013.jan09_1.bcr2012007766.2","doi-asserted-by":"crossref","unstructured":"Copley SJ . Pulmonary lobar collapse: essential considerations. In Adam A Dixon AK Grainger RG Allison DJ .eds. Grainger & Allison's diagnostic radiology. A textbook of medical imaging. 5th edn. 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