Department of Orthopedic Surgery, Imam Mohammad Ibn Saud Islamic University, College of Medicine, 7544, Riyadh, 11432, Saudi Arabia.
Department of Orthopedic Surgery, McGill University Health Centre, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, H3T 1E2, Canada.
J Med Case Rep. 2020 May 25;14(1):60. doi: 10.1186/s13256-020-02368-y.
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.
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.
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.
掌长肌被认为是人体中解剖变异最多的肌肉之一。由于掌长肌肥大导致前臂局部肿胀较为罕见。
在此，我们报告了 1 例罕见的 24 岁阿拉伯男性病例，其前臂出现疼痛性肿块，伴有正中神经受压症状。进行了全面的影像学评估，并对其进行了保守治疗。
该病例证实，肥大的掌长肌可能是前臂肿胀的原因，在鉴别诊断中应始终考虑到这一点。通过本报告，我们旨在提高对掌长肌异常变异的认识，以及使用影像学检查来明确诊断的重要性。
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