Osteochondritis Lesions of the Ischiopubic Area in Young Adolescents

Figure 1

(a) On the right ischium, there is calcification adjacent to the parental bone that has normal structure. (b–d) STIR sequence in transverse (b), coronal (c), and sagittal (d) plane of the pelvis in an adolescent with right hip pain. An asymmetric enlargement of the right ischial tuberosity is observed, with a semilunar osteocartilaginous mass separated from the body of the ischial tuberosity. A fluid field cavity is developed between the parental bone and the detached fragment, whereas concomitant edema of the surrounding muscles due to blood products is also observed. The conjoined hamstring tendon remains attached to the apophysis. (e) There is partial union of the calcified osteochondral bone to the ischium.

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