Partial Spontaneous Expectoration of Primary Endobronchial Leiomyosarcoma / 대한흉부외과학회지

Primary endobronchial leiomyosarcoma is a very uncommon tumor and its diagnosis by spontaneous expectoration of tumor fragment has never been reported in the literature, We report a patient with primary endobronchial leiomyosarcoma that was diagnosed by spontaneous expectoration of partial tumor tissue. The expectorated tissue was found to be pathologically consistent with leiomyosarcomal. Right lower lobectomy and all lymph node dissections were performed during the operation. Pathologic examination showed that the tumor was histologically identical to the patient's previous expectorated tissue and was confined to the bronchus and did not invade the adjacent pulmonary parenchyma and lymph nodes.