[Primary pulmonary leiomyosarcoma with bone formation].
A 64 year-old-male was admitted because of general malaise and chest discomfort. In the right lower field, a chest X-ray film showed a mass shadow, which had been found 12 years previously. Autopsy revealed primary pulmonary leiomyosarcoma. Metastasis of many lymph nodes and distant organs was noted. Histologically, the tumor was composed of spindle-shaped tumor cells and accompanied bone formation in tumor tissues.
D006801:Humans; D007890:Leiomyosarcoma / Q000473:pathology*; D008175:Lung Neoplasms / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000473:pathology*