Abstract
A case of pulmonary carcinosarcoma was described.
A 73 year-old male visited Keio University Hospital in December 1974 with a complaint of productive cough. His chest X-ray revealed right massive pleural effusion and he was admitted to our hospital. One month after admission, he complained of extreme fatigue, had no intake of food and finally died.
On autopsy a large white mass (16×15×13cm) was found in the right lower lobe of the lung. This tumor was adhered to the right diaphragm and its central portion was necrotic. A small round metastatic lesion (1×1cm) was found at the right upper parietal pleura. Microscopically, almost all parts of the tumor consisted of spindle-shaped fibrous cells with round nuclei. In other parts of the tumor, irregular glandular patterns composed of cuboidal and cylindrical cells were seen. Nuclei of these cells were oval and their cytoplasms were clear.
