PMC9179189_01
Ultrasonographic transversal views, using a 10-MHz transducer, of the infraspinatus muscle (IF) of a greyhound racing dog. (A) In the right IF, hypoechoic areas interspersed into the muscle fibers are detectable (arrow); (B) In the left IF, those findings are more evident and severe (arrows).
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Ultrasonographic examination (Figure 1) revealed muscle fiber discontinuity, interspersed with indefinite margins of hypoechoic areas at the deepest parts of the IF (left +++, right ++).