Endobronchial hamartoma with obstructive pneumonia due to Nocardia asiatica.

A 60-year-old man who had diabetes had a history of hospitalization for pneumonia in the right lower lobe at the age of 57 years. He visited our facility complaining of fever and cough. He was admitted owing to pneumonia in the right lung. Computed tomography and bronchoscopy performed after admission revealed a tumor in the right basal bronchus. Nocardia asiatica was detected in a sputum culture. Complete resection of the bronchial tumor could not be achieved with a high-frequency snare, although the patient was preoperatively diagnosed as having hamartoma. The patient subsequently underwent resection of the right lower lobe due to his deteriorated clinical condition. The postoperative course was favorable, and there has been no recurrence of nocardiosis or bronchial hamartoma for 3 years.