title: Isolated schwannoma attached to the paratenon of semitendinosus muscle.
abstract: Schwannomas are benign tumors arising from the peripheral nerves with a Schwann cell sheath. Schwannomas can be found in almost every region, but are usually associated with cranial, spinal, sympathetic and peripheral nerves. Schwannoma in lower extremity is relatively common and most are associated with sciatic nerve, peroneal nerve and tibial nerve. However, schwannoma arising in the tendon or paratenon is extremely rare. We report a rare case of a 25-year-old male patient with a schwannoma originating from the paratenon of semitendinosus muscle without evidences of any neurologic symptoms. The clinical history, plain radiographs, magnetic resonance imaging, and pathologic findings of the reported patient have been reviewed. The tumor was fully excised by dissecting a tendon sheath of semitendinosus muscle.
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea.
authors: J H
authors: JH
authors: Kwon
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea.
authors: J I
authors: JI
authors: Kim
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea.
authors: K W
authors: KW
authors: Kang
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea.
authors: J H
authors: JH
authors: Nam
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea.
authors: D Y
authors: DY
authors: Jo
authors: Department of Orthopaedic Surgery, Inje University, Ilsan Paik Hospital, 2240, Daehwa-dong, Ilsan-Segu, Goyang-Si, 411-706 Ilsan, Republic of Korea. Electronic address: kwnhamj@hotmail.com.
authors: K W
authors: KW
authors: Nha
mesh_terms: D000328:Adult; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D019042:Muscle Neoplasms / Q000175:diagnosis / Q000601:surgery*; D018482:Muscle, Skeletal / Q000601:surgery*; D009442:Neurilemmoma / Q000175:diagnosis / Q000601:surgery*; D013710:Tendons / Q000473:pathology / Q000601:surgery*
keywords: Paratenon; Peripheral nerve sheath tumor; Schwannoma; Semitendinosus muscle