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  • Title: Structural Origin and Surgical Complications of Peripheral Schwannomas.
    Author: Yonezawa H, Miwa S, Yamamoto N, Hayashi K, Takeuchi A, Igarashi K, Tada K, Langit MB, Higuchi T, Abe K, Taniguchi Y, Morinaga S, Araki Y, Asano Y, Tsuchiya H.
    Journal: Anticancer Res; 2020 Nov; 40(11):6563-6570. PubMed ID: 33109598.
    Abstract:
    BACKGROUND/AIM: In this study, we investigated the locations and surgical complications of schwannomas. PATIENTS AND METHODS: Data of 130 patients with schwannomas were retrospectively reviewed. Pre- and post-operative neurological symptoms, tumor locations, and nerves of origin (sensory, motor, or mixed) were reviewed. RESULTS: Before surgery, 69 patients had Tinel-like signs, 56 patients had pain, 32 patients had numbness, four patients had motor deficits. After surgery, 20 patients had developed a new neurological deficit; 11 patients had motor deficits, ten patients had sensory deficits, and one patient had both motor and sensory deficits. Most schwannomas occurred in mixed nerves, including the median nerve in 17 patients and tibial nerve in 13 patients. CONCLUSION: The most common site of schwannoma was the median nerve. Although the nerve of origin of the schwannoma could be identified in only 26.0% of cases, the data suggest that schwannomas occur in both sensory and motor nerves.
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