MRI of pelvic neurofibromatosis

Abstract

Pelvic neurofibromatosis is a rare disease and rarely involves the prostate. A 19-year-old male presented with irritative and obstructive voiding symptoms. Magnetic resonance imaging showed a large mass extending from the sacral promontory to the perirectal and perivesical spaces and to the proximal root of the penis. The mass also involved the prostate. The characteristics of the mass were highly suggestive for neurofibroma. Prostate biopsy showed neurofibroma, and the immunohistochemistry stain for S-100 protein was positive.

Pelvic Neurofibroma

“…Only 60 cases of pelvic neurofibroma have been reported till date. 1 , 2 We report this case of a pelvic neurofibroma in a 58-year old male, which mimicked a soft tissue tumor on presentation.…”

Pelvic neurofibroma arising from prostate in a case of neurofibromatosis-1

“…[1] Prostatic neurofibroma is even rare. Urinary bladder is the most commonly involved organ in pelvic neurofibroma; which can be an isolated finding or as a part of neurofibromatosis-1 (NF-1).…”