NERVE TERRITORY-ORIENTED MACRODACTYLY - UNUSUAL CAUSE OF CARPAL-TUNNEL SYNDROME

Nerve territory-oriented macrodactyly is a rare congenital lesion. It most commonly involves the median nerve and is an unusual cause of CTS . Its appearance on plain film, CT, and MR imaging have been described previously and can be attributed to an increase in fibrofatty tissue that surrounds the median nerve. We report a case and suggest its char acteristic appearance on ultrasonography.