CASE 304: HIP PAIN, Dr PHAN THANH HẢI, MEDIC MEDICAL CENTER, HCMC, VIETNAM. Man 43 yo, one week ago, pain at his left hip while moving his thigh, no trauma history. Ultrasound first saw the left hip joint having a small amout of fluid collection and more Power Doppler in muscles around the hip ( see 4 US images).

MSCT was done but radiologist said nothing abnormal detected.

MRI detected abnormal head of left femur bone looked like aseptic necrotic femoral head.

Please compare diagnostic values of 3 diagnostic modalities for this case:ultrasound, MSCT and MRI.