Abstract
Endobronchial hamartomas are relatively rare. A 57-year-old woman was detected an abnormal shadow on a chest x-ray film at a medical checkup. Chest CT scan showed an intra-bronchial tumor 5 cm in diameter occluding the right B6 bronchus and hilar and mediastinal lymph node swelling. Lung cancer was likely and she was referred to our hospital. When she was first seen, the shadow had shrunk and we conducted antimicrobial therapy with a diagnosis of pneumonia, but it turned out obstructive pneumonia. Bronchoscopic examination demonstrated a tumor protruding from the right B6 bronchus and we obtained the diagnosis of hamartoma by a biopsy. As we had difficulty in treating obstructive pneumonia, the patient was considered to be a candidate for surgery. We performed the operation by thoracotomy. At surgery, severe adhesion and lymph node swelling made us difficult to dissect, and we checked the tumor location directly by cutting the bronchus and performed S6 segmentectomy. The pathological diagnosis was a hamartoma. A favorable therapeutic result was achiedved by segmentectomy.