Loss of right femoroacetabular joint space with extensive low T1/high fluid-sensitive signal within the acetabulum, the right femoral head, neck and inter-trochanteric region with focal areas of intramedullary contrast enhancement within the acetabulum and the proximal femoral diaphysis.
Subchondral bony erosion.
Large multiloculated thick rimmed enhancing joint effusion. Direct involvement of the adjacent iliopsoas without superior extension into the pelvis or retroperitoneum.
Thickening and fluid seen along the investing fascia of the quadriceps compartment of the thigh.
Conclusion:
Septic arthritis and osteomyelitis of the right hip joint with a multiloculated thickly enhancing joint effusion and adjacent extension into the right iliopsoas most consistent with tuberculous septic arthritis.