A CASE OF INTRABRONCHIAL HAMARTOMA PRESENTED WITH OBSTRUCTIVE PNEUMONITIS

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  • 閉塞性肺炎を呈した気管支内過誤腫の１例

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Abstract

Among benign tumors of the lung, hamartoma is most common. Most hamartomas are of pulmonary parenchyma type and intrabronchial hamartomas are relatively rare. In this paper, we present a resected case of intrabronchial hamartoma presented with obstructive pneumotitis.<br>A 49-year-old man seen at another hospital because of slight fever and general fatigue and found to have a funicular shadow spreading like ‘oogi’ in the right middle lower lung field on a chest X-ray film was referred to the hospital. After admission a chest CT scan showed a tumor with calcification at the right hilus of lung. Bronchoscopy revealed a tumor almost completely obstructed the intermediate trunk of the right bronchus. A biopsy revealed only granulation tissue. A possibility of malignancy, however, could not be roled out of and surgery was performed. During surgery, a hard tumor covering from the right bronchial middle trunk to a branch of the inferior lobe was prolapsed. We determined that a removal of the tumor by bronchotomy was impossible because the tumor was large. In addition, secondary change was confirmed in the middle inferior lobe which seemed like irreversible change, so that the middle inferior lobe was excised. Histopathological diagnosis was caltilaginous hamartoma arising from the bronchial wall. There have been no signs of recurrence as of 9 months after the operation.

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