[Electron microscopic characteristics of serous and endometrioid neoplasms of the ovaries].

Using electron microscopy the authors have studied the operation material of 15 patients with serous (9 cases) and endometrioid (6 cases) ovarian neoplasms. It was demonstrated that the epithelium of endometrioid neoplasms differs from that of serous ones by less polymorphism, the absence of cilia, the signs of secretory activity and more intense development of tonofibrils in the cytoplasm.