Hypertrophied reversed palmaris longus muscle (pseudotumor) of the forearm causing median nerve compression: a case report.

Background: The palmaris longus muscle is considered one of the most anatomically variable muscles in the human body. Localized swelling of the forearm due to hypertrophy of the palmaris longus muscle is rare.

Case Presentation: Here, we report a rare case of a 24-year-old Arab man who presented with a painful mass on his forearm with symptoms of median nerve compression.