Published in:
01-04-2019 | Cubital Tunnel Syndrome | Clinical Practice: Clinical Images
Ulnar Distribution Paresthesia, Weakness and Atrophy: a Characteristic Presentation of Cubital Tunnel Syndrome
Published in: Journal of General Internal Medicine | Issue 4/2019
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A 69-year-old man presented with 6 months of progressive paresthesias involving the left fourth and fifth fingers and weakness of left thumb adduction. There was no history of injury or occupational overuse. Examination of the left hand revealed atrophy of the first dorsal interosseous muscle (Fig. 1), diminished sensation of the fourth and fifth fingers, and weakness of finger abduction/adduction (interossei) and thumb adduction (adductor pollicis). Electromyography and nerve conduction studies were consistent with compression of the ulnar nerve at the cubital tunnel, typical of cubital tunnel syndrome.
Figure 1
First dorsal interosseous muscle atrophy of the left hand secondary to ulnar neuropathy.
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