schwannoma

schwannoma /shwonō″mə/ pl. schwannomas, schwannomata [Theodor Schwann; Gk, oma, tumor] , a benign, solitary, encapsulated tumor arising in the neurilemma (Schwann’s sheath) of peripheral, cranial, or autonomic nerves. Also called neurilemmoma, Schwann cell tumor.

Schwannoma on the sole of the foot (du Vivier, 2002)