Abstract
Background: Schwannomas originating from the sciatic nerve are extremely rare and usually present as a pathological mass in palpable examination or pain located in the thigh. Motor and sensory deficits are observed more often when the size of the tumor is more than 40 mm.Case Description: A 19-years- old female patient was referred to Suez Canal University Hospital after 6 years of pain and 2 years of improper management. Neurological examination and MRI of the right thigh were done and revealed a huge mass attached to the right sciatic nerve. Surgical excision was undertaken, carefully dissecting the lesion from the sciatic nerve. Histopathological examination revealed the tumor to be a schwannoma. The patient had marked postoperative recovery with marked pain reduction and improved neurological deficits.Conclusions: Schwannomas of the sciatic nerve are rare tumors eccentrically located on the nerve. Although rare, schwannoma of the sciatic nerve should be systematically suspected if thigh mass or persistent sciatica is reported. Surgical excision has a good prognosis.
Highlights
Schwannomas originating from the sciatic nerve are extremely rare and usually present as a pathological mass in palpable examination or pain located in the thigh
Schwannomas most commonly are observed in adults between 20 and 50 years old. [11, 13] We report a very rare case of giant schwannoma of the sciatic nerve in a 19-year-old female who presented with increasing swelling and discomfort in the posterior aspect of her right thigh
We demonstrate that even with such large tumors, surgical excision could be successfully carried out to resolve all symptoms while causing no permanent nerve damage
Summary
Schwannomas originating from the sciatic nerve are extremely rare and usually present as a pathological mass in palpable examination or pain located in the thigh. [11, 13] We report a very rare case of giant schwannoma of the sciatic nerve in a 19-year-old female who presented with increasing swelling and discomfort in the posterior aspect of her right thigh. Clinical Presentation: A 19-year-old female patient had a 6-year history of increasingly severe right thigh pain. Pain quietened for 2 months and it recurred again It was more severe than before and the mass increased in size. Muscle of the right lower limb started to decrease in size and limping gait was evident. The histopathological report confirmed the diagnosis of a sciatic nerve schwannoma, owing to the presence of Antoni A and B areas and Verocay bodies. [1]
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