Radiological appearance of primary extracranial meningioma of the pelvis in a middle-aged woman

Description 

A 47-year-old woman came with the complaints of on-and-off constipation for 6 months with the inability to pass stool for 2 days. She also complained of poor urinary stream and increased urine frequency for 1 year and had a history of hysterectomy with bilateral salpingo-oophorectomy. Her general and systemic examinations were unremarkable. Abdominal radiograph revealed diffuse opacification of the pelvis with left lateral displacement and compression of the rectal shadow (figure 1A). CT of abdomen and pelvis (figure 1B–F) revealed a large, well-defined heterogeneously enhancing lobulated lesion in the presacral region and central pelvis showing multiple coarse calcifications within. The lesion was abutting the distal sigmoid colon and rectum causing their left lateral displacement with luminal compression and loss of intervening fat plane. There was resultant dilatation of the large and distal small bowel loops suggestive of intestinal obstruction. The fat plane between the lesion and the...

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