Cystic olfactory ensheathing cell tumor: a case report

Excerpt

Schwannomas are very rare tumors that typically benign and arise from any nerve with a Schwann cells sheath. Schwannomas are predominantly seen arising from the vestibular portion of the eighth cranial nerve and less commonly from the fifth, ninth and tenth cranial nerves. Intracranial schwannomas related to the olfactory groove are very rare. The origin of OGS is fascinating because olfactory nerve belongs to central nervous system, and has no Schwann cells. Olfactory ensheathing cells (OECs) are glial cells that accompany the axons of olfactory receptor neurons, which regenerate throughout life, olfactory mucosa into the olfactory bulb. In 2006, Yasuda first proposed the concept of an olfactory ensheathing cell tumor (OECT) because of its immunoprofile [1]. Herein, we report the sixth case of OECT published so far. …