title: Mycobacterium intracellulare pulmonary infection which co-existed and mimicked lung cancer.
abstract: We report a case of Mycobacterium intracellulare (M. intracellulare) pulmonary infection with co-existing lung cancer and presenting as a solitary pulmonary nodule requiring differentiation from lung cancer. Computed tomography showed two nodules (20 mm) with spicula formation and pleural indentation on the right lower lobe of the lung (right S6 and S8). Transbronchial biopsies from the right S6 and S8 nodules revealed mycobacteriosis and adenocarcinoma, respectively. Thereafter, a right lower lobectomy was performed. Cases of pulmonary M. intracellulare disease with solitary nodule are rare. Moreover, M. intracellulare pulmonary infection with co-existing lung cancer is extremely rare.
authors.affiliation: Department of Internal Medicine, Sasebo City General Hospital, Sasebo. toyosawai@yahoo.co.jp
authors.forename: Toyomitsu
authors.initials: T
authors.lastname: Sawai
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Soda
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kohno
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis*; D000368:Aged; D000995:Antitubercular Agents / Q000627:therapeutic use; D003937:Diagnosis, Differential; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging* / Q000382:microbiology*; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis*; D008297:Male; D015270:Mycobacterium avium-intracellulare Infection / Q000150:complications* / Q000000981:diagnostic imaging / Q000188:drug therapy; D011859:Radiography
chemical_list: D000995:Antitubercular Agents