[Clinico-morphologic characterization of lung metastases from osteogenic sarcoma during chemotherapy]

Clinical and morphological characterization of osteogenic sarcoma (OS) and its lung metastases is presented in 16 patients, of whom 7 have not received preoperational chemotherapy. The morphological structures of the primary tumor and its metastases are shown to be of the same type. In most observations, OS metastases have been found to have no signs of therapeutic pathomorphism and their structures are identical to those of anaplastic polymorphocellular sarcoma with osteoid. The average life span of the patients was 35 months after pulmonary metastases removal.