Carpal tunnel syndrome caused by lipoma

Abstract

Carpal tunnel syndrome as a result of space occupying masses is very rare. Lipomas located in the carpal tunnel were found in small number of cases. In this case report, we present a case of a middle-aged woman with progressive muscle atrophy of the thenar and loss of sensation on the right hand innervated by the median nerve. Clinical examinations, electromyography and MRI were done, and a soft tissue mass, the most likely lipoma, was found in the carpal tunnel making pressure to the median nerve. Surgery was performed, decompression of the median nerve was provided, and results after two months showed complete improvement of the motor end sensory function of the hand.