Schwannoma in the Thenar Eminence: a Case Report

This report describes a rare presentation of schwannoma in the thenar aspect of a surgeon and reviews the literature. A 35-year-old surgeon had a slow-growing swelling in his left thenar eminence. Clinical and radiological findings suggested it was a well-encapsulated mass within the abductor pollicis brevis muscle. A complete surgical excision was done, and the histopathological findings confirmed schwannoma, a benign peripheral nerve tumor. The surgeon remained symptom-free and had no recurrence at 1 year of follow-up. Though a benign peripheral nerve tumor is rare in the hand, it remains one of the differential diagnoses for a thenar eminence swelling. Surgical enucleation preserving the nerve fascicles achieves an excellent functional outcome.