title: Oat cell carcinoma manifesting as a bronchocele.
abstract: Three cases of oat cell carcinoma appearing as a bronchocele on the chest radiograph are described. A bronchocele as the major radiologic manifestation of oat cell carcinoma has not been emphasized previously. Such a bronchocele may be filled with neoplastic cells rather than only inspissated mucus. Needle aspiration biopsy was definitive in two of the cases when conventional diagnostic methods failed.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D001982:Bronchial Diseases / Q000000981:diagnostic imaging*; D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging*; D001995:Bronchography; D018288:Carcinoma, Small Cell / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000000981:diagnostic imaging*