RT Journal Article SR Electronic T1 Structural Origin and Surgical Complications of Peripheral Schwannomas JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 6563 OP 6570 DO 10.21873/anticanres.14681 VO 40 IS 11 A1 HIROTAKA YONEZAWA A1 SHINJI MIWA A1 NORIO YAMAMOTO A1 KATSUHIRO HAYASHI A1 AKIHIKO TAKEUCHI A1 KENTARO IGARASHI A1 KAORU TADA A1 MICKHAEL B. LANGIT A1 TAKASHI HIGUCHI A1 KENSAKU ABE A1 YUTA TANIGUCHI A1 SEI MORINAGA A1 YOSHIHIRO ARAKI A1 YOHEI ASANO A1 HIROYUKI TSUCHIYA YR 2020 UL http://ar.iiarjournals.org/content/40/11/6563.abstract AB 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.