J Am Podiatr Med Assoc. 2020 Nov 1;110(6). doi: 10.7547/20-038.
Schwannomas are benign, encapsulated soft-tissue tumors that rarely present to the foot and ankle. These tumors are usually asymptomatic unless an increase in size or disruption of the nerve causes pain. We report a case of a painful mass along the lateral plantar nerve near the fourth metatarsal base that was surgically excised and confirmed as a benign schwannoma by means of histopathologic analysis. At the final follow-up of over 2 years, the patient reported no pain, neurologic deficits, or signs of recurrence. This case demonstrates an unusual location of a schwannoma arising from the lateral plantar nerve.
神经鞘瘤是良性、包膜的软组织肿瘤，很少发生在足部和踝关节。这些肿瘤通常是无症状的，除非肿瘤增大或神经受压导致疼痛。我们报告了一例发生在第四跖骨基底附近足底外侧神经的疼痛性肿块，通过组织病理学分析证实为良性神经鞘瘤。在超过 2 年的最终随访中，患者报告无疼痛、无神经功能缺损或复发迹象。本例展示了起源于足底外侧神经的神经鞘瘤的一个不常见位置。
