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

Figure 3

Preoperative images of the patient’s right ankle presented in the second case. (a) Obliteration of Kager’s fat pad visible on the plain lateral radiograph of the right ankle is pointed by a white arrow, and insula compacta is pointed by a black arrow. (b) 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. (c) T2-weighted sagittal MR image of the right ankle. ASM is marked with an asterisk (), where shrinkage of the muscle can be visualized towards its insertion. (d) T2-weighted axial MR image superior to the right ankle. ASM is marked with an asterisk (). In this plane, the muscle is positioned closest to the neurovascular bundle that is pointed by a white arrow. (e) T1-weighted axial MR image of the right ankle. Tendinous insertion of the ASM on the medial side of the calcaneus is pointed by a white arrow, and insula compacta in the calcaneus is pointed by a black arrow. (f) T1-weighted axial MR image of the right ankle. ASM is marked with an asterisk (), tendinous insertion of the ASM on the medial side of the calcaneus is pointed by the white arrow, and insula compacta in the calcaneus is pointed by a black arrow. No elevation of the skin and subcutaneous tissue is visible.

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