<prompt> 16 yr old, obese female presented with history of bilateral hip pain from a long duration. Endocrinology tests show hypothyroidism. She has a painful limping gait. Which of the following investigation is of no use in diagnosis of this condition?X-RayMRICTUSG  <response>: History given is suggestive of SCFE Slipped capital femoral epiphysis. X-Ray showsa Trethowans sign CT is used for AcuteChronic slip MRI is IOC. USG has no role in diagnosing this condition. 