Abstract
Schwannoma of the Median Nerve at the Wrist- A Case Report and Review of Literature
Highlights
Peripheral nerve tumors are uncommon lesions categorized into primary neuronal, nerve sheath, and non-neuronal neoplasm
Schwannoma, known as neurilemoma, is a benign soft tissue tumour arising from the Schwann cells of the nerve sheath derived from the neural crest [1,2] and usually affects patients aged 20-50 years without race or sex predilection and accounts for approximately 5% of all benign soft tissue tumors [3]
Tumors with a long evolution and relatively large dimensions can undergo degenerative changes such as cyst formation, calcification, hemorrhage and fibrosis and are described as ancient schwannomas [4] which can be misdiagnosed as sarcomas due to specific imaging and histologic findings
Summary
Peripheral nerve tumors are uncommon lesions categorized into primary neuronal, nerve sheath, and non-neuronal neoplasm. Solitary schwannoma is a slow-growing tumor and it is often found incidentally as a painless mass for years before the onset of pain and neurological symptoms caused by compressing surrounding tissues and peripheral nerves. Orthopedics and Rheumatology Open Access Journal past two years He complained of pain and paraesthesia in the median nerve distribution area of the right hand. On exploration was found a 3 cm long well encapsulated tumor arising from the median nerve in an eccentric position to the axis of the nerve (Figure 3a). The first one, referred to as Antoni A, was more densely cellular and consisted of Schwann cells compactly disposed in broad bundles and interlacing fascicles In these areas some nuclei were grouped into palisaded clusters.
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