A Rare case of Ulnar Nerve Intraneural Perineurioma in an elderly gentleman

Summary: Intraneural perineurioma (IPN) is a rare benign neoplasm of the peripheral nerve sheath, most commonly affecting the sciatic nerve of adolescents or young adults. We present a rare case of perineurioma in a 67-year-old man with an infiltrative clinical presentation affecting his ulnar nerve. Complete excision required en-bloc resection of the ulnar neurovascular bundle from mid-forearm to mid-palm with sural nerve and saphenous vein grafts used to reconstruct the ulnar nerve and artery, respectively. Despite recurrence from a previously localized excision, there has been no recurrence to date following en-bloc resection. The available literature on intraneural perineurioma is reviewed in light of this case report. IPN is an important entity because of its ability to mimic neural malignancies, and this case challenges the assertion that it is a tumour that occurs strictly in the young.

Abstract licence: CC BY-NC-ND

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