Two cases of segmental sporadic schwannomatosis characterized by unusual location of multiple schwannomas in digital nerves (case 1) and the superficial radial nerve (case 2) are described in this paper. In the first of the described cases, 6 tumours located at the base of the middle finger and in its distal portion were excised from both digital nerves. In the second case, 3 tumours located in...

Malignant schwannoma is an extremely rare tumor and the risk of malignant schwannoma increases in patients with von Recklinghausen's disease. Recently, we encountered a case of solitary malignant schwannoma in the choana and posterior nasal septum. Malignant schwannoma has not been previously reported in these locations. A 53-year-old man, who was immunologically healthy and showed no abnormal ...

Schwannoma (neurilemmoma) is a benign peripheral nerve sheath tumor that occurs in a wide variety of locations; however, its finding in the uterine cervix is extremely rare. We report a case of an incidental primary benign cervical schwannoma in a 48-year-old woman. In the English literature, a few cases of primary schwannoma of the cervix have been reported, which include seven cases of primar...

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.