The incidence of pulmonary leiomyosarcoma is very rare as a primary lung tumor, Usually, pulmonary leiomyosarcoma arise from from the smooth muscle present in the bronchi or blood vessles.
We had experienced two cases of primary pulmonary leiomyosarcoma.
The first case was 28-year old male patient who had been in good health until admission, when he experienced an episode of dyspnea and sudden hemoptysis. The chest X-ray film revealed a large round tumor mass in left lower lobe measuring
6.5*9.5*5.3cm
in dimension.
On physical examination, the patients was friction rub and rales on the left lower chest. Emergency left lower lobectomy was performed due to repeated hemopthsis, without special syudy. Postoperative course was smcoth and non-eventful.
Chemotheraphy was
done postoperatively as an adjuvant therapy.
The second case was 52-year-old man who had been well prior to admission, when recently he noticed a abrupt growing tendency of old pulmonary coin lesion in right lower lobe on routine physical examination. Since 1968, small round mass was
gradually
enlarged very slowly and during recent one year interval, the tumor mass was enlarged abruptly as twice in size on chest X-ray. Bronchoscopic examination revealed no specipic findings. Right lower lobectomy was performed and pathologic
examination
was
answered as primary pulmonary leiomyosarcoma without lymph node metastasis.
Postoperative course was smooth, except local wound infection. (Korean J Thoracic Cardiovas Surg 1993;26:654-60)
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