Rat RN22 schwannoma cells in vitro release into their growth medium a macromolecular factor that, when bound to polyornithine-coated culture substrata, will stimulate neuritic regeneration from axotomized peripheral and central neurons. During the purification of this factor, the neurite-promoting activity co-purifies with laminin immunoreactivity as measured by an enzyme-linked immunoadsorbent...

In schwannomatosis, LZTR1 and SMARCB1 are known as causative genes. previous reports of some schwannomatosis tumors, hybrid schwannoma/ neurofibroma tumor (hybrid tumor) that have both schwannoma features in a been recognized. general, consists mixture schwann cells, fibroblasts, perineural mast cells. Neurofibroma cells to be CD34 positive. On the other hand, mostly. schwannoma, Antoni B loose...

schwannoma of the hypoglossal nerve is an uncommon benign neoplasm. we present a 49-year-old female patient with hypoglossal schwannoma presenting as a painless mass in the submandibular area.

A case of cervical glossopharyngeal schwannoma presenting with gagging dysphagia is presented. Treatment was by total excision of the schwannoma following which the patient made a good recovery. To our knowledge, this is the first report of gagging dysphagia associated with a glossopharyngeal schwannoma.

Neoplasms in sinonasal cavity are dominated by epithelial type. Sinonasal osteomas common, benign, slow-growing, often asymptomatic neoplasms occurring mainly the frontal and ethmoid sinuses. Peripheral nevre sheath tumors soft tissue rarely encountered region. Schwannoma is a benign peripheral tumor. Here, we presented co-occurence of osteoma schwannoma. So far, infiltrated schwannoma region n...

Adrenal schwannoma is an extremely uncommon cause of incidentaloma. It originates from neural sheath Schwann cells of the adrenal gland. We report the case of a left adrenal schwannoma incidentally discovered in a 32-year-old woman during examination of bloated feeling and stomach ache. The patient was incidentally found to have a left adrenal mass of 9 cm on abdominal ultrasonography. Computed...

Schwannoma comprises a group of nerve sheath tumors. Morphologic variants of schwannoma have no distinct relationship to clinical behavior, but unawareness of rare variants may lead to diagnostic pitfall and risk of mistreatment. Microcystic/reticular schwannoma is a recently described rare variant of schwannoma. We report a case of a 61-year-old female with a 5.0 cm × 3.5 cm × 3.0 cm mass in t...

Schwannoma is a benign tumor that arises from the sheath of myelinated nerve fibers and may occur in any part of the body. Osteogenesis in schwannoma is extremely rare and, to date, new bone formation in sinonasal schwannoma has not yet been reported. Here, we describe the first reported case of sinonasal schwannoma with new bone formation. The tumor was successfully treated by endoscopic sinus...

BACKGROUND Schwannoma is a tumor that develops on peripheral nerves or spinal roots. Although any part of the body can be affected, axillar and supraclavicular lesions are unusual for schwannoma. We report two cases of schwannoma arising in the brachial plexus, which were detected by 18F-fluorodeoxyglucose positron emission tomography and computed tomography (FDG-PET/CT). CASE 1 A 75-year-old...

Schwannomas are soft tissue sarcomas arising from neurilemma of Schwann cells in peripheral nerves, and is the most frequent type of benign tumor found in these nerves. We report a case of a Schwannoma of the ulnar nerve in the elbow joint, and along this report, give a review of the literature. A 46-year-old male patient was hospitalized with complaints of swelling and pain in the left elbow a...