1986 Volume 8 Issue 1 Pages 85-89
A case of endobronchial hamartoma in an anomalously branching bronchus is described. The patient, a 49 year-old male, complained of cough and sputum. He underwent thoracotomy on a diagnosis of bronchial tumor at another institution but adhesion reportedly prevented resection. However the tumor grew larger subsequently and the patient was transferred to the Department of Surgery of Tokyo Medical College. Chest-ray film revealed a nodule in the righ hilum. Bronchofiberscopic examination showed the tumor to be located in the truncus intermedius and endobronchial hamartoma was diagnosed by transbronchial biopsy. Surgery revealed that the right B^<1+2> and B^3 branched at different points from the right main bronchus and the tumor extended from B^<3b> up to the right main bronchus and truncus intermedius. Right S^3 segmentectomy was performed. Microscopically, the tumor was covered with columnal epithelium and was composed of chondromatous tissue, fatty tissue and connective tissue. We believe that this is the first report in the world of an endobronchial hamartoma developing in an anomalously branching bronchus.
