PMC5462483_01
Clinical picture of the left leg - patient lying in the supine position, shows no obvious swelling in the leg (leg muscles relaxed).
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Local examination revealed no obvious swelling in the leg at rest, with patient lying in the supine position (Figure 1.).
Clinical picture of the left leg - patient standing and straining leg muscles, shows a soft, non-tender swelling, measuring approximately 6.5x3.0 cm, on the anterior aspect of the leg.
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On standing and straining the leg muscles, there was a soft, non-tender swelling, measuring approximately 6.5x3.0 cm, seen along the anterior aspect of the leg in its mid-part (Figure 2.).
Axial sonogram of the anterior leg - patient lying in the supine position, shows a defect (black arrows), measuring approximately 9.5 mm, in the fascial sheath of the tibialis anterior muscle.
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Axial sonogram of the patient lying in the supine position showed a defect of approximately 9.5 mm in the fascia of the tibialis anterior muscle with no bulging of muscle fibres (Figure 3.).
Axial sonogram of the leg at rest and after muscle straining (second image) shows a focal bulge of muscle fibres (white arrow) through the fascial defect (black arrow).
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Then, the axial sonogram revealed a herniation of muscle fibres through the defect, producing a focal bulge at the anterior aspect of the leg (Figure 4.).