title: Ultrasound evaluation of benign sciatic nerve sheath tumors.
abstract: The ultrasonograms of three patients with surgically proven benign tumors of the sciatic nerve sheath were reviewed. Two lesions were neurilemmomas and one was a neurofibroma. All lesions appeared hypoechoic and often demonstrated characteristics typically associated with cystic abnormalities. Although the sciatic nerve is not routinely delineated as a separate anatomic structure by ultrasound, neoplastic enlargements of the nerve can be demonstrated.
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology; D009456:Neurofibromatosis 1 / Q000175:diagnosis* / Q000473:pathology; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis* / Q000473:pathology; D012584:Sciatic Nerve / Q000473:pathology; D014463:Ultrasonography / Q000379:methods*