[Lesions of the anterior tibial tendon using ultrasonography: report of 2 cases].

Lesions of the tibial anterior tendon have been seldom described in the literature. To the best of our knowledge, no report analysing the diagnostic role of ultrasound as a diagnostic method has been published so far. Clinically, these lesions are regularly misdiagnosed as ganglions or even tumors. In the first case, ultrasound showed well known signs of tendon rupture as disorganization of the fibers, swelling, and presence of an anechoic zone corresponding to hematoma. In the second case, ultrasound showed an even more scarce lesion, i.e. insertion tendonitis on the medial cuneiform, sometimes misdiagnosed as a stress fracture. Once again, ultrasound is the method of choice, showing the spindle-like swelling characteristic of these lesions.