A case of lung carcinosarcoma

Abstract

Carninosarcoma of the lung is a rare malignant tumor associated with a poor prognosis.

A 68-year-old male was admitted to our hospital because of cough and phlegm. A chest radiogram revealed a nodular shadow in the left middle-lung field. Chest CT showed a 30 mm-diameter mass accompanied by pleural indentation in S3 of the left lung, and PET revealed FDG accumulation in the tumor. The biopsy findings suggested squamous cell carcinoma. The patient underwent left upper lobectomy and lymph node dissection. The histopathological diagnosis was carcinosarcoma involving adenocarcinoma, squamous cell carcinoma, and chondrosarcoma with lymph node metastasis. Two months later, he was found to have bone metastasis on MRI, and irradiation was initiated. Five months after surgery, multiple lung and liver metastases were noted. Chemotherapy was administered but the patient died 13 months after surgery.