Detection of Myofascial Herniation on Dynamic Sonography and Magnetic Resonance Imaging

Figure 1

(a) Longitudinal section on the anterolateral aspect of left upper leg superior to the site of muscle hernia showing intact echogenic fascia with underlying tibialis anterior muscle. (b) Transverse section on the anterolateral aspect of left upper leg in standing position showing a defect in echogenic fascia (marked by arrow) with an increase in herniation of underlying tibialis anterior muscle through the defect. (c) Transverse section on the anterolateral aspect of left upper leg in standing position showing the defect of size 9.9 mm in echogenic fascia with herniation of underlying tibialis anterior muscle through the defect. (d) Longitudinal section on the anterolateral aspect of left upper leg at rest at the site of muscle hernia showing a defect in echogenic fascia with herniation of underlying tibialis anterior muscle through the defect (marked by arrow).

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