Value of Electron Microscope in the Diagnosis of Small Cell Malignant Tumors
Tang Xiuying Zhang Ye Cai Lijun(Department of Electron Microscopy,The First Hospital, Bejing Medical University,Beijing 100034)
24 cases small cell malignant tumors (SMT), histologically, all tumors had similar patterns, it is difficulty to diagnosis. We studied them by transmission electron microscope (TEM). Ultrastructural findings show: mesenchymal tumors (n=7), neuroectodermal tumors (n=3), No Hodgkin's Lymphomas (n=3), neuroendocrine carcinomas (n=4), amelanomas (n=2), Ewing's sarcomas (n=5). The study suggests that TEM play an important role in diagnosis and differentiation of SMT.