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Abstract Carpal tunnel syndrome is manifested clinically hy pain, numbness and buming sensation that are increased by night, In advanced cases there is anesthesia of the thumb, index and middle fingers and radial half of the ring finger while muscle I atrophy and loss of functions are late findings, All these clinical presentations are non-specific and oould occur in many other I diseases such as other causes of peripheral neuropathy e.g. DM I Nerve conduction studies, which was the main diagnostic modality in suspected carpal tunnel syndrome give infonnation about the function but not the anatomical changes of the median nerve associated with carpal tunnel syndrome and do not help in detcnnination of etiological factors of this syndrome. I Thus, searching tor a diagnostic modality that help in evaluation of the anatomical and structural changes that affect the median nerve in ca-.es of carpal tunnel syndrome was mandatory. |