Left hip pain OSSEOUS STRUCTURES: There is a focus of increased edema within the superior acetabulum best appreciated on series 9 image 5/18. There is otherwise no abnormal marrow signal within the left hip. Cystic changes are also noted in the anterior and superior acetabulum (series 9 image 5/18) which are likely degenerative in nature. Mild osteoarthritis affects the left hip.SOFT TISSUES: There is increased soft tissue edema anterior compartment of the hip, specifically involving the vastus intermedius and anterior capsule. Similar although less prominent increased signal is seen posteriorly affecting the obturator internus muscle. The muscle attachments appear intact.Following contrast administration, there is diffuse enhancement in these areas reflecting inflammation. There is no evidence of an enhancing mass or abnormal marrow enhancement.
1. Abnormal soft tissue edema and enhancement surrounding the left hip representing nonspecific inflammation which appears most conspicuous within the vastus intermedius muscle.2. Osteoarthritis of the left hip with degenerative marrow edema and cystic changes within the superior acetabulum.