Bondy P C, Block R M, Green J
Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, VA 23708-5000, USA.
Ear Nose Throat J. 1996 Dec;75(12):781-3.
Schwannomas (neurilemmomas) are neurogenic tumors that arise from the Schwann cells of the neural sheath. They are most often benign and solitary. Extracranial schwannomas are rare, and can be mistaken for metastatic disease or other non-neurogenic tumors. Ancient schwannoma is a rare variant of schwannoma with a course typical of a slow-growing benign tumor. Histologically, it can be confused with a malignant mesenchymal tumor. An unusual case of an ancient schwannoma of the submandibular gland is reported. The clinical, histological and surgical aspects of this tumor are discussed, and the literature regarding this rare entity is reviewed.
施万细胞瘤（神经鞘瘤）是起源于神经鞘雪旺细胞的神经源性肿瘤。它们大多为良性且为单发。颅外施万细胞瘤罕见，可能被误诊为转移性疾病或其他非神经源性肿瘤。陈旧性施万细胞瘤是施万细胞瘤的一种罕见变体，具有典型的缓慢生长良性肿瘤病程。在组织学上，它可能与恶性间叶性肿瘤相混淆。本文报告了一例罕见的下颌下腺陈旧性施万细胞瘤病例。讨论了该肿瘤的临床、组织学和手术方面，并复习了关于这一罕见实体的文献。
