Schwannomas are usually benign tumors arising from Schwann cells of the peripheral nerve sheath. Most schwannomas are benign, although malignant cases are known to occur, especially when there is association with Von Recklinghausen‘s disease, which occurs in 5% to 18% of cases. In the absence of von Recklinghausen‘s disease, these masses rarely occur in the retroperitoneum, comprising 0.5% to 5...

Schwannoma is an encapsulated nerve sheath tumor that is distinct from neurofibromatosis. It is defined as the occurrence of multiple schwannomas without any bilateral vestibular schwannomas. A 46-year-old man with multiple schwannomas involving peripheral nerves of the ipsilateral lower extremity presented with neurologic symptoms. Electrodiagnostic studies revealed multiple mononeuropathies i...

We are reporting a rare case of gastric tumor which on resection turns out to be Schwannoma. Digestive tract Schwannomas are rare mesenchymal tumors’ occurring most frequently in the stomach. Owing to their typical presentation as sub mucosal neoplasm’s with spindle cell histology, gastric schwannomas and GISTs appear grossly similar moreover there is no difference in clinical presentation but ...

Schwannomas are uncommon in the facial nerve and account for less than 1% of tumors of temporal bone. They can involve one or more than one segment of the facial nerve. The clinical presentations and the imaging appearances of facial nerve schwannomas are influenced by the topographical anatomy of the facial nerve and vary according to the segment(s) they involve. This pictorial essay illustrat...

Abstract Background Head and neck is a relatively common site of occurrence for the peripheral nerve sheath tumors, majority these tumors are seen involving neck, vagus nerve, cervical sympathetic chain. Schwannomas mobile tongue rarely encountered, especially in pediatric population Case presentation We present case recurrent schwannoma 13-year-old female successfully managed with transoral ex...

Bilateral vestibular schwannomas are the hallmark of neurofibromatosis type 2 (NF2), and these tumors impair hearing and frequently lead to deafness. Neurosurgical intervention, the only established treatment, often damages the vestibular nerve. We report 2 cases in which treatment with bevacizumab (for 3 months in one case and 6 months in the other) induced regression of progressive vestibular...

BACKGROUND/AIMS Gastric schwannomas are rare benign mesenchymal tumors that are difficult to differentiate from other mesenchymal tumors with malignant potential, such as gastrointestinal stromal tumors. This study aimed to evaluate the characteristic findings of gastric schwannomas via endoscopic ultrasonography (EUS). METHODS We retrospectively reviewed the EUS findings of 27 gastric schwan...

BACKGROUND Nonvestibular schwannomas of the skull base often represent a challenge owing to their anatomic location. With improved techniques in endoscopic endonasal skull base surgery, resection of various ventral skull base tumors, including schwannomas, has become possible. OBJECTIVE To assess the outcomes of using endoscopic endonasal approach (EEA) for nonvestibular schwannomas of the sk...

Communicating hydrocephalus (HCP) in vestibular schwannomas (VS) after gamma knife radiosurgery (GKRS) has been reported in the literature. However, little information about its incidence and risk factors after GKRS for intracranial schwannomas is yet available. The objective of this study was to identify the incidence and risk factors for developing communicating HCP after GKRS for intracrania...

Removal of large and giant vestibular schwannomas is associated with the risk paresis facial muscles. The probability anatomical damage to nerve 10.3–14.0%. Treatment mimic muscle paralysis one most difficult problems in reconstructive surgery. In this study, results neurotization by masticatory were evaluated 4 patients after its during removal schwannomas. Neurotization was carried out 10–14 ...