Schwannomas are benign neoplasms with unknown etiology, which apparently arise from neural sheath Schwann cells. Intraoral schwannomas are solitary, slow-growing lesions occurring at different ages; these lesions are normally asymptomatic and in some cases, they are accompanied by pain and paresthesia if spotted in the intraosseous regions of the mandibles. Definitive diagnosis of schwannoma i...

OBJECTIVES Facial nerve schwannomas may be misdiagnosed as vestibular schwannomas (VSs) if the tumor is confined to the internal auditory canal (IAC) without involvement the geniculated ganglion or labyrinthine segment of facial nerve. Because facial nerve schwannomas may be misdiagnosed as VSs, we investigated the differences between the two. METHODS The study included 187 patients with a pr...

Background: A schwannoma is a benign peripheral nerve tumor. Predicting the involvement of a nerve on symptoms or MR findings is crucial to the diagnostic process. Purpose: To compare symptoms, MR findings, and histological findings between major nerve schwannomas and intramuscular schwannomas. Material and Methods: Thirty-four patients with 36 schwannomas (29 major nerve schwannomas and 7 intr...

variety of primary mesenchymal tumors of the gastrointestinal tract, such as leiomyoma, leiomyosarcoma, leiomyoblastoma, and schwannoma. Schwannomas are rare tumors derived from Schwann cells, which form the neural sheath. Gastrointesinal schwannomas are rare and most of them originate in the stomach or the small intestine. Schwannomas of the colon are extremely rare. Few case reports have desc...

Schwannomas (neurilemmomas) are benign neurogenic tumours of peripheral nerves. They originate from Schwann cells, which form the neural sheath. Although Schwannomas and neurofibromas are the most common primary peripheral nerve tumours, Schwannomas are rarely observed in ophthalmic areas. When they occur, ocular Schwannomas are usually located in the orbit, uveal tract and conjunctiva. Isolate...

Schwannomas are benign,slowly growing, encapsulated peripheral nerve tumors. Schwannomas are homogenous tumors and consist of only Schwann cells. They develop outside of the nerve, but may push it aside or against adjacent structure causing damage to the nerve. Most schwannomas occur as solitary lesions. Presence of multiple schwannomas in a single patient suggeststumorogenesis and a possible a...

Schwannomas are benign nerve sheath tumors, which can occur sporadically or in patients with neurofibromatosis. Schwannomas of the penis are extremely rare. To our knowledge, only 18 cases of penile schwannomas have been reported previously in the English-language literature. Here we report two additional cases of penile schwannomas, including one case of multiple penile schwannomas. The first ...

INTRODUCTION The aim of this study is to assess the clinical properties and surgical results of patients diagnosed with spinal schwannomas without neurofibromatosis (NF) properties. PATIENTS AND METHODS The data obtained from 35 patients who underwent resection of spinal schwannomas were analyzed. All cases with neurofibromas and those with a known diagnosis of NF Type 1 or 2 were excluded. 3...