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 m... https://mabelandfoxs.shop/product-category/memory-box/