Judged: two independent readers; copy check clear.
schwannoma
schwannoma A schwannoma is a noncancerous, usually enclosed, slow-growing tumor made up of Schwann cells.
A schwannoma is a noncancerous, usually enclosed, slow-growing tumor made up of Schwann cells. It occurs in peripheral or cranial nerves and tends to come back only rarely, with malignant change reported only in uncommon cases.