Accessory soleus: a clinical perspective and report of three cases.

Anomalies of the posterior leg musculature are not rare. Therefore, when assessing a posterior ankle mass, the possibility of an aberrant muscle must be considered. Most cases in the literature were confirmed surgically. Electromyography (EMG), nerve conduction studies, and computerized tomography (CT) may obviate surgical intervention, which should be reserved for symptomatic cases.