Intestinal Schwannoma <!---images--->

Clinical History

Complaints of benign prostatic hyperplasia. After transurethral resection an ultrasound examination was performed to measure the postvoiding bladder residue.

Imaging Findings

The patient consulted with complaints of benign prostatic hyperplasia. After transurethral resection an ultrasound examination was performed to measure the postvoiding bladder residue. Because of abnormal findings on ultrasound, CT scan of the pelvis wassubsequently carried out.

Discussion

Benign solitary schwannoma is a rare finding in the abdomen. The stomach and small intestine are the most common abdominal sites of occurrence. Benign schwannomas also occur in the omentum, lesser sac and mesentery. They may reach a large size without causing clinical symptoms, as shown in the presented case. Differential diagnosis includes other mesenteric or omental cysts: enteric duplication cyst, enteric cyst, mesothelial cyst, extrapancreatic pseudocyst, cystic mesothelioma, cystic spindle cell tumor and cystic teratoma. Because of the overlap in imaging features of these pseudo-cystic masses, histological examination is necessary to establish a definite diagnosis. The major role of medical imaging is to demonstrate the mixed (cystic and solid) nature of the abdominal mass and its mesenteric or omental origin. In conclusion, a neurogenic tumor should be considered in the differential diagnosis in cases of (partially) cystic abdominal masses, even in the absence of neurofibromatosis.

Differential Diagnosis List

Final Diagnosis

Intestinal Schwannoma

URL:	https://eurorad.org/case/909
DOI:	10.1594/EURORAD/CASE.909
ISSN:	1563-4086