Nkosi Collen Sandile, Chauke Nyiko Zakaria
Department of Orthopaedic Surgery, Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa.
J Orthop Case Rep. 2023 Sep;13(9):93-98. doi: 10.13107/jocr.2023.v13.i09.3890.
Schwannomas are rare benign tumors of the nerve sheath that originate from the Schwann cells of the peripheral nerve and have a broad anatomic distribution that includes superficial tissues, deep tissues, including the central nervous system, and the gastrointestinal system.
A 60-year-old male presented with left knee pain for 5 years. This pain was associated with paresthesia, night pain unresponsive to analgesia, on the left foot intermittent pins and needles sensation. Schwannoma lesion was excised, histology confirmed the diagnosis, and the patient's symptoms improved.
Schwannoma around the knee is a rare or atypical cause of the non-arthritic pain and should be considered in the differential diagnosis of non-arthritic and extra-articular causes of knee pain with neurological deficit of the foot in an adult population.
施万细胞瘤是一种罕见的神经鞘良性肿瘤，起源于周围神经的施万细胞，解剖分布广泛，包括浅表组织、深部组织（包括中枢神经系统）以及胃肠道系统。
一名60岁男性，左膝疼痛5年。该疼痛伴有感觉异常、对镇痛无反应的夜间疼痛、左脚间歇性针刺感。切除施万细胞瘤病变，组织学确诊，患者症状改善。
膝关节周围的施万细胞瘤是引起非关节炎性疼痛的罕见或非典型原因，在成年人群中，对于伴有足部神经功能缺损的非关节炎性和关节外膝关节疼痛的鉴别诊断中应予以考虑。
