Incomplete high radial nerve palsy due to schwannoma of radi
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A schwannoma is considered the most common benign tumor of peripheral nerves composed of Schwann cells and 5% of these tumors occur in the upper limbs. The tumor is often associated with tingling sensation, which may not be a constant finding at clinical examination. Generally, the tumor grows slowly with minimal symptoms and the serious neurological symptom is quite rare. We should check the typical signs of schwannomas, such as positive Tinel’s sign and paresthesia. It is possible to identify the tumor’s origin through evaluation of imaging studies using magnetic resonance imaging (MRI) and ultrasonography. We present a case of a 44-year-old female who was diagnosed with an incomplete high radial nerve palsy, showing a wrist drop and extension of fingers due to schwannoma of the radial nerve of the upper arm with excellent result following the excision of the schwannoma and an end-to-end anastomosis of the radial nerve.

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