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

Journal of Medical Case Reports

Majdi Hashem¹  Raheef Alatassi²  Kaushal Narinder³  Fawaz Emran⁴ 

[1] Department of Orthopedic Surgery, Imam Mohammad Ibn Saud Islamic University, College of Medicine;Department of Orthopedic Surgery, McGill University Health Centre, Jewish General Hospital;Department of Radiology, Prince Faisal Bin Fahad Bin Abdulziz Sports Medicine Hospital;Department of Surgery, Family Care Hospital;

关键词: Palmaris longus;    Muscle hypertrophy;    Muscle anomaly;    Muscle variant;    Magnetic resonance image;    Median nerve compression;   

DOI  :  10.1186/s13256-020-02368-y

来源: DOAJ

【 摘 要 】

Abstract 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. A full radiological assessment was performed, and he was treated conservatively. Conclusion This case confirmed that a hypertrophied palmaris longus muscle can be the cause of swelling on the forearm and should always be considered in the differential diagnosis. With this report, we aimed to increase awareness regarding the unusual variations of palmaris longus muscle and the importance of using radiological investigations to establish a diagnosis.

【 授权许可】

Unknown