Muscular metastasis of primary bronchial carcinoma

: We report 2 cases of muscle metastases from primary lung cancer (an adenocarcinoma and one epidermoid carcinoma). In one patient the metastases revealed the disease. This site of metastasis seems to be exceptional since only 46 cases have been published, but its frequency is probably underestimated. A retrospective study of the last 10 years and an exhaustive review of the literature have enabled us to determine the frequency of muscle metastases from lung cancer and their physiopathological implications.