A case of transient osteoporosis of the hips in a 17-year-old-woman is reported.Transient osteoporosis of the hip (TOH) is an uncommon but possibly underdiagnosed condition.The TOH affects previous healthy middle-age men, and women in the third trimester ofpregnancy. Its etiology is still unclear. Pain in the hip area and limp are the main clinical signs.The MRI study shows low signal intensity on the Tl weighted images and limp signal intensityon the T2 weighted images in the femoral head and neck. It is generally accepted that thechange in MRI is caused by an increase in fluid within the marrow cavities of the femoral head.Differential diagnosis of hip problems is required. The purpose of this report is to review thediagnostic and therapeutic aspects of TOH.

A case of transient osteoporosis of the hips in a 17-year-old-woman is reported.Transient osteoporosis of the hip (TOH) is an uncommon but possibly underdiagnosed condition.The TOH affects previous healthy middle-age men, and women in the third trimester ofpregnancy. Its etiology is still unclear. Pain in the hip area and limp are the main clinical signs.The MRI study shows low signal intensity on the Tl weighted images and limp signal intensityon the T2 weighted images in the femoral head and neck. It is generally accepted that thechange in MRI is caused by an increase in fluid within the marrow cavities of the femoral head.Differential diagnosis of hip problems is required. The purpose of this report is to review thediagnostic and therapeutic aspects of TOH.