title: The contributions of electron microscopy in the diagnosis and histogenesis of controversial neoplasms.
abstract: In this article, several areas in the pathology of tumors are discussed in which electron microscopy has contributed valuable diagnostic information but, at the same time, has not resolved all the questions regarding histogenesis, differentiation, and cell type.
mesh_terms: D006393:Hemangiopericytoma / Q000648:ultrastructure; D018219:Histiocytoma, Benign Fibrous / Q000648:ultrastructure; D006801:Humans; D008080:Liposarcoma / Q000648:ultrastructure; D008654:Mesothelioma / Q000648:ultrastructure; D008854:Microscopy, Electron; D009369:Neoplasms / Q000175:diagnosis* / Q000648:ultrastructure; D009442:Neurilemmoma / Q000648:ultrastructure; D012512:Sarcoma, Ewing / Q000648:ultrastructure