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Fig. 2B —21-year-old man with unilateral (right-side) gluteal
contracture. Healthy left buttock can be used for comparison. Spin-echo
T1-weighted axial image (600/16) at lower portion of both buttocks shows
atrophic and medial retraction of right gluteus maximus muscle
(arrowhead), thickening and mild retraction of its tendon and
iliotibial tract (black arrows), and depressed groove at
muscle-tendon junction. More anteverted axis of right femoral neck
(double-headed arrows) suggests mild external rotation of right
femur. Healthy left gluteus maximus muscle extends to lateral aspect of
greater trochanter and inserts on iliotibial tract (white arrow).
Gmax = gluteus maximum muscle.
