A usual tumor at an unusual site: Report of two cases of schwannoma at nonindigenous sites

Abstract

Schwannoma is a benign, slow‐growing encapsulated tumor arising from schwann cells of the nerve
sheath and believed to originate from the embryonic neural crest cells. They are common tumors of the
head‐and‐neck region and extremities arising from the nerve sheaths of cranial and spinal nerves. We
present two cases of schwannoma occurring at uncommon sites. The first case is a solitary intra‐cranial
schwannoma presenting in the frontal region which was radiologically diagnosed as meningioma. And, the
second case presented as a polypoidal lesion in the right nasal cavity.