A Case of Metastasis to the Latissimus Dorsi Muscle from Squamous Cell Carcinoma of the Lung.

概要

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A 68-year-old man underwent right upper lobectomy for squamous cell carcinoma of the lung in December 1995. The Pathological stage was TIMM0, and the postoperative course was uneventful. In August 1996, a hard subcutaneous mass 4cm in diameter was detected in the right thoracodorsal region. Chest CT scan showed a well enhanced mass in the right latissimus dorsi muscle. Needle aspiration cytology of the mass revealed malignant cells and the tumor was resected. Histologically, the tumor was composed of infiltrating moderately differentiated squamous cell carcinoma similar to the previously resected lung cancer. Chemotherapy by cisplatin and 5FU was given twice postoperatively. As of September 1997, the patient is alive with no evidence of tumor recurrence.<BR>Skeletal muscle metastasis from lung cancer is extremely rare. In Japan only nine cases have been reported and the outcome of those cases was very poor. Therefore careful follow-up is necessary.
特定非営利活動法人日本肺癌学会の論文