Symptomatic accessory soleus muscle: A cause for exertional compartment syndrome in a young soldier: A case report

Figure 1 Gross photo and plain radiograph of the patient. A: Photograph showing soft tissue swelling and fullness between the medial malleolus and the Achilles tendon on the right side in a 23-year-old man; B: Lateral radiograph showing soft tissue density filling Kager’s triangle (retrocalcaneal space).

Figure 2 Magnetic resonance images of accessory soleus occupying the posterior compartment of the right ankle. A: Accessory soleus caused bulging of the flexor hallucis longus in axial T2 fat suppressed view; B: In coronal T1-weighted view, the accessory soleus muscle was widely distributed at the medial calcaneal tuberosity.

Figure 3 Intraoperative views. A: Operative incision; B: The accessory soleus muscle anterior to the Achilles tendon; C: Photograph of the excised specimen showing its length about 12 cm; D: Photograph showing the defect formed after removal of the accessory soleus muscle.