A woman with complete vaginal eversion was found to have a large pelvic mas
s, extending from the rectovaginal septum to the presacral space. This 66-y
ear-old woman with posthysterectomy vaginal eversion complained of pelvic f
ullness. A pessary provided relief of the prolapse, but the symptom of full
ness persisted. Physical examination did not identify a pelvic mass. Comput
ed tomography (CT) and magnetic resonance imaging (MRI) demonstrated a 9 cm
tumor of the rectovaginal septum, extending to the presacral space. At lap
arotomy the patient had a massive neurofibroma arising from the anterior re
ctal wall. This case is of interest because the complete vaginal prolapse o
bscured the diagnosis of this large pelvic tumor. CT and MRI were useful in
identifying and characterizing the mass. To our knowledge, this is the fir
st reported case of vaginal prolapse with a large pelvic mass.