An exophytic bony lesion at the lesser trochanter of left femoral neck composed of cortical and medullary components in broad-based continuity with parent bone suggestive of sessile osteochondroma with no cartilage cap is seen.
The lesion narrows the ischiofemoral space leading to interstitial edema (grade I muscle strain pattern) involving left quadratus femoris muscle consistent with ischiofemoral impingement.