BACKGROUND Profound hearing loss is a serious complication of neurofibromatosis type 2, a genetic condition associated with bilateral vestibular schwannomas, benign tumors that arise from the eighth cranial nerve. There is no medical treatment for such tumors. METHODS We determined the expression pattern of vascular endothelial growth factor (VEGF) and three of its receptors, VEGFR-2, neuropi...

STUDY DESIGN Retrospective case series. PURPOSE The objectives of this study were to determine and discuss the surgical planning of patients who underwent operations following diagnoses of thoracal and lumbar spinal schwannomas. We also aimed to discuss the application of unilateral hemilaminectomy for the microsurgery of schwannomas. OVERVIEW OF LITERATURE Schwannomas are located in differ...

Schwannomas of the paranasal sinus are uncommon. Less than 4% of schwannomas involve the nasal cavity and paranasal sinuses, even less in the pediatric age group. A case of schwannoma arising in maxillary sinus in a 2.5-year-old Chinese boy is reported. The basis for discussion of this case is the exceptional rarity of sinonasal schwannoma in pediatric patients.

Schwannomas are usually single, encapsulated, and benign tumors of the nerve sheath that arise from the perineural Schwann cells. Schwannomas are mostly seen in the fourth decade. Despite its location in the head and neck region is 25-45%, lip location of schwannoma are very rare. We present a case of a upper lip schwannoma in the pediatric age and review the literature.

Neurofibromatosis type 2 is characterized by the development of multiple nervous system tumors. This disorder is also called multiple inherited schwannomas, meningiomas, and ependymomas syndrome. In this report, we discuss the magnetic resonance imaging findings in a patient with Neurofibromatosis type 2 who had right and left vestibular and trigeminal schwannomas, unilateral facial schwannoma,...

Schwannomas may occur anywhere in the soft tissues or viscera, but do not commonly involve the pancreas and retroperitoneum. We present a case of benign pancreatic schwannoma which clinically simulated a malignant neoplastic process.

Jugular foramen schwannomas are a rare event with an estimated 200 cases reported in the literature. These tumors represent only 2.9% to 4% of all intracranial and less than 1% temporal bone lesions [1,2].