Lab Studies:
None
Other Studies:
Right Forearm EMG: No evidence of muscle denervation associated with right forearm bulge.
Right Forearm Radiograph: Unremarkable radiographic appearance of the right forearm.
Right Forearm MRI: Initially read as normal. After 2nd review with MSK Radiologist and Hand Surgeon:
There is an accessory muscle on the volar aspect of the forearm most consistent with a reverse palmaris longus. This inverted configuration with the muscle belly located distally, results in pronounced musculature near the wrist. It has a digastric configuration. There is no abnormal fluid signal or STIR signal within the muscle to suggest compartment syndrome or soft tissue mass.
Case Photo #1 , Case Photo #2 , Case Photo #3 , Case Photo #4
Consultations:
Neurology and Orthopedic Hand Surgeon
Click here to continue. Challenge yourself by writing down a revised, working diagnosis before moving to the next slide.