Abstract
Carpal tunnel syndrome is the most common peripheral entrapment neuropathy. We report on the first Korean case of carpal tunnel syndrome induced by tophaceous deposition in flexor digitorum tendons of a patient with chronic gout. A 63-year-old male suffered from numbness, decreased sensation over both median nerve distribution, and weakness of thenar muscle for 3 years. Physical examinations revealed positive Tinel’s sign and Phalen’s test and thenar qjmuscle atrophy was found on both hands. In nerve conduction study, there was no action potential of the sensory and motor of the bilateral median nerve. Ultrasonography showed increased cross-sectional area of median nerve due to tophaceous deposition in flexor digitorum tendons in the carpal tunnel. Dual-energy computed tomography showed diffuse multifocal green color coding tophaceous deposition within the carpal tunnel. His neuropathic symptoms improved after injection of triamcinolone into the carpal tunnel and administration of oral medication including non-steroidal anti-inflammatory drugs and colchicine. (J Rheum Dis 2015;22:29-33)
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