Department of Surgery, Section of General Surgery, University of Chicago Medical Center, 5841 S. Maryland Ave, MC 5095, Chicago, IL, 60637, USA.
Updates Surg. 2011 Dec;63(4):293-6. doi: 10.1007/s13304-011-0063-x. Epub 2011 Apr 2.
Schwannomas are encapsulated, usually benign, tumors composed of well-differentiated Schwann cells, arising from the neural sheath of peripheral nerves. The most common type of benign schwannoma is the acoustic neuroma arising from the eighth cranial nerve. Retroperitoneal schwannomas account for 0.5-3% of the retroperitoneal tumors in most series. We present a case of a 39-year-old man with a pelvic mass, arising from a sacral nerve root, diagnosed as a schwannoma.
神经鞘瘤为包膜完整的良性肿瘤，由分化良好的雪旺氏细胞构成，起源于周围神经的神经鞘。最常见的良性神经鞘瘤是源于第八颅神经的听神经瘤。在大多数研究中，腹膜后神经鞘瘤占腹膜后肿瘤的 0.5-3%。我们报告 1 例 39 岁男性，盆腔肿块起源于骶神经根，诊断为神经鞘瘤。
