[Difficulties in the pathological diagnosis of Garre's neurinoma (glandular schwannoma (author's transl)].

Evidence from a case studied with electron microscopy suggests that tumors diagnosed up till now as Garre's neurinoma (glandular schwannoma), without ultrastructural proof, may not in fact originate in Schwann cells. None of the characteristics of Schwann cells could be demonstrated in the fusiform cells of the tumor. The medical literature is reviewed.