Abstract
Introduction: The development of limb musculature takes place between the fifth and seventh weeks of intrauterine life. The genes MYO-D and MYF5 regulate the limb musculature development and any defect in these may lead to either a partial or complete loss or an addition to the normal muscle morphology. This case report presents the observation of an accessory tendon of the Peroneus brevis muscle in the left lower limb of a 70 year old male cadaver during the routine dissection for undergraduate students at Government Medical College, Miraj. The variant insertion of the Peroneus brevis tendon on the calcaneal tubercle is clinically important to note in cases of lateral ankle pain and instability. The presence of an accessory tendon of the peroneus brevis muscle may also be a cause of the longitudinal splitting of the muscle which should be taken into consideration while making a diagnosis and planning surgeries around the lateral aspect of the ankle.
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