[Electron microscopic study of cell elements and interstitial substance of osteogenic carcinoma]

The electron-microscopy investigation of osteogenic sarcomas of the osteoplastic type made it possible to identify 4 types of cells with a various ultrastructure. The cells of osteogenic sarcoma retain the ultrastructural specificity of skeletogenous cells and some features of tissue organization. This confirms once more the statement that osteogenic sarcoma is a derivative of the precursor of skeletogenous cells which underwent a tumour transformation.