Accessory Soleus Muscle: Two Case Reports with a Completely Different Presentation Caused by the Same Entity

Figure 1

Preoperative images of the patient’s right ankle presented in the first case. (a) A swelling is visible in the posteromedial part of the right ankle, which is more prominent in plantar flexion. (b) Obliteration of Kager’s fat pad visible on the plain lateral radiograph of the right ankle is pointed by a white arrow. (c) T1-weighted sagittal MR image of the right ankle. Accessory soleus muscle (ASM) is marked with an asterisk (), and obliteration of the Kager’s fat pad is pointed by a white arrow. (d) T2-weighted axial MR image of the right ankle. ASM is marked with an asterisk (), and neurovascular bundle in the posteromedial part of the ankle is pointed by a white arrow. (e) T1-weighted axial MR image of the right ankle. ASM is marked with an asterisk (), and elevation of the skin and subcutaneous tissue is pointed by a white arrow. (f) T1-weighted coronal MR image of the right ankle. ASM is marked with an asterisk (), the elevation of the skin and subcutaneous tissue is pointed by a white arrow, and muscular insertion of the ASM on the medial side of the calcaneus is pointed by a black arrow.

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