60-year-old female felt a pop in the left calf yesterday when she was avoiding the car. Painful to walk now. Evaluate for calf muscle rupture. There is edema deep to the medial head of the gastrocnemius muscle and superficial to the soleus muscle with associated discontinuity of the muscle distally near the myotendinous junction and associated retraction of 1.5 cm. There is mild intramuscular edema within the medial head of the gastrocnemius muscle. There is small amount of blood products/fluid at the myotendinous junction (series 10, image 34). Findings are compatible with a full-thickness tear of the medial head of the gastrocnemius muscle. No muscle atrophy is noted. The plantaris and scoliosis muscles appear normal. The anterior compartment musculature appears normal. Bone marrow signal is normal.
Findings compatible with complete rupture of the medial head of gastrocnemius at the myotendinous junction with with retraction of the muscle by about 1.5 cm. There is a small amount of blood products/fluid at the site of tear at the myotendinous junction.