Bilateral palmaris profundus causing bilateral carpal tunnel syndrome

Area of Science:

• Anatomy
• Orthopedics
• Neurology

Background:

• The palmaris profundus is an uncommon forearm muscle variant.
• Anomalous muscles can contribute to entrapment neuropathies like carpal tunnel syndrome.

Observation:

• This report details the first documented instance of bilateral palmaris profundus.
• The anomaly was observed alongside bilateral palmaris longus muscles.

Findings:

• Bilateral palmaris profundus and palmaris longus muscles were found to cause bilateral carpal tunnel syndrome.
• This presentation highlights a rare anatomical cause of bilateral carpal tunnel syndrome.

Implications:

• Understanding rare anatomical variations is crucial for diagnosing complex carpal tunnel syndrome cases.
• This case expands the known spectrum of muscle anomalies associated with carpal tunnel syndrome.