[Lung metastases from tumors at different sites]

A comparative study of necropsy material is carried out for the period of 1974-1983. For these ten years 11603 autopsies are performed. In 222 cases neoplastic processes with different lung metastases are obligatory, which makes 1.8% of total number of cases. The primary sites of these metastases are as follows: tumor of the stomach (26), breast (33), bile duct (10), bile ways (3), liver (13), large intestine (30), incretory glands (31), etc. The morphological evolution shows that the histologic type of the primary tumors varies (carcinomas, malignant lymphomas, teratocarcinomas, sarcomas, neuroblastomas, etc.). In some cases (carcinomas of the kidneys and liver, sarcomas of the bones) the histologic type of the primary tumor is identical to that of the Metastatic processes in the lungs. In some of the lung metastases however there are differences in the histological structure compared to the primary tumors. A clinical morphological comparative study is performed.