Hakan Tayfun, Kılıç Yusuf, Çelikoğlu Erhan, Ekemen Süheyla
Neurosurgery, Private Practice, Intermed Çiftehavuzlar Outpatient Clinics, İstanbul, TUR.
Surgery, Intermed Çiftehavuzlar Outpatient Clinics, İstanbul, TUR.
Cureus. 2019 Nov 25;11(11):e6231. doi: 10.7759/cureus.6231.
Schwannomas are common, well-encapsulated benign tumors of the peripheral nerves. They rarely emerge from the median nerve in the forearm. Here we report a case of an unusual schwannoma measuring 3 × 4 × 3 cm originating from the median nerve in the proximal forearm of a 49-year-old man. The mass was painless, but Tinel's sign was positive. Ultrasonography showed a solid, hypoechoic mass with central cystic areas in the flexor muscle group in the left forearm. Magnetic resonance imaging with contrast enhancement in T1 sequences revealed that it originated from the median nerve. Surgical resection was performed by separating the nerve fibers from the tumor without any complications. Histological examination confirmed it as a schwannoma.
施万细胞瘤是常见的、有完整包膜的周围神经良性肿瘤。它们很少起源于前臂的正中神经。在此，我们报告一例罕见的施万细胞瘤病例，该肿瘤大小为3×4×3厘米，起源于一名49岁男性前臂近端的正中神经。肿块无痛，但Tinel征呈阳性。超声检查显示左前臂屈肌肌群内有一个实性、低回声肿块，中央有囊性区域。T1序列增强磁共振成像显示其起源于正中神经。通过将神经纤维与肿瘤分离进行手术切除，未出现任何并发症。组织学检查证实为施万细胞瘤。
