Department of Anatomy, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Department of Anaesthesiology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.
Ann Afr Med. 2023 Oct-Dec;22(4):557-559. doi: 10.4103/aam.aam_35_22.
An interesting case of unusual unilateral variant of palmaris longus (PL) tendon of forearm was noticed by us. We found two bellies of PL as well as their different insertions. These observations will help in understanding morphological variations of this muscle and its clinical implications. PL is a fusiform muscle in the superficial flexor group of muscles of forearm. It originates from medial epicondyle of humerus by common flexor tendon. We found PL having one origin, i.e., from medial epicondyle from common tendinous origin of flexor muscles and then it divided to form two bellies having two long tendons distally. Understanding of presence or absence or anomalies of PL is not only important for medical professionals but also for evolutionary biologists. Awareness of anatomy and variations of flexor tendons is important for health care practitioners for the correct diagnosis and management of pain, disease, and trauma of forearm and hand.
我们注意到前臂掌长肌（PL）肌腱的一种不寻常的单侧变体的有趣病例。我们发现了 PL 的两个肌腹及其不同的附着点。这些观察结果将有助于理解该肌肉的形态变异及其临床意义。PL 是前臂浅屈肌群中的一个梭形肌肉。它由肱骨内上髁通过共同的屈肌腱起始。我们发现 PL 有一个起点，即从内上髁从屈肌的共同腱性起点开始，然后它分成两个肌腹，在远端形成两个长肌腱。了解 PL 的存在、缺失或异常不仅对医学专业人员很重要，对进化生物学家也很重要。了解屈肌腱的解剖结构和变异对医疗保健从业者很重要，这有助于正确诊断和管理前臂和手部的疼痛、疾病和创伤。
