Achilles rupture TENDONS: There is thickening and increased signal of the proximal Achilles tendon beginning approximately 9.2 cm above its attachment on the calcaneus. There is full-thickness rupture situated approximately 5.5 cm proximal to its attachment although the exact location of rupture is somewhat obscured by the presence of heterotopic calcification. The extent of abnormal signal which may represent rupture is approximately 4 cm. There is buckling of the distal fibers of the tendon although some lateral fibers attach upon the calcaneus. The remaining distal fibers also demonstrate abnormal signal intensity suggesting underlying tendinosis. There is a small focus of increased signal within the distal fibers of the peroneus longus which may represent a small area of split tear or tendinosis. The remaining tendons of the ankle appear intact.LIGAMENTS: No significant abnormality noted.ARTICULAR SURFACES AND BONE: No significant abnormality noted. ADDITIONAL
1. Full-thickness rupture of the Achilles tendon further detailed above. 2. Small focus of increased signal within the distal fibers of the peroneus longus which may represent intrasubstance tear or degeneration.