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Fig. 4C —Sonography and MR images of shoulder in 75-year-old man
(A and B, respectively), 59-year-old woman (C and
D, respectively), and another 75-year-old man (E and F,
respectively). Coronal sonograms (A and C) show muscle
(arrows, A and C) being mildly hyperechoic relative to
trapezius muscle (t) and pennate pattern that is effaced. Coronal T1-weighted
MR images (B and D) show mild fatty infiltration.