Discovering an Anatomic Variant of the Palmaris Profundus during Open Carpal Tunnel Release.

A 46-year-old female presented after 3 years of steadily increasing numbness in her hands bilaterally with worse symptoms in her right hand. She reported nighttime paresthesia and exacerbation of her symptoms while writing, typing, and driving. Tinel's and carpal tunnel compression test were positive bilaterally.