Pelvic Schwannoma Causing Recurrent Acute Urinary Retention / 대한비뇨기과학회지

ABSTRACT

Schwannoma is a tumor that arises from neural sheath Schwann cells of peripheral nerves. Schwannoma is mostly solitary, except when it occurs in association with Von Recklinghausen's disease. Solitary schwannoma can occur in association with a nerve anywhere within the body, but rarely occurs in the pelvis. Microscopically, the tumors can be divided into hypercellular bundles of spindle-shaped cells (Antoni A area) and areas of lower cellularity, with loose myxomatous arrangement of cells and fibers (Antoni B area). Complete resection of pelvic schwannoma is a curative treatment. We report a case of benign presacral cystic schwannoma that caused recurrent acute urinary retention in a 79-year-old woman, along with a review of the literature.