Presentation
Middle aged male patient with persistent pain in the right hip and thigh. No history of trauma.
Patient Data
High T2/STIR and low T1 signal in the right femoral head and neck. No enhancement.
No cortical irregularity of collapse. No joint effusion.
The right hip on the follow up study is completely normal.
The high T2 signal has completely resolved.
Case Discussion
Idiopathic transient osteoporosis of the hip (ITOH) is a self limiting entity of unknown cause, although thought to have a vascular basis and possible overactivity of the sympathetic system.
Traditionally taught as being a condition of pregnant women, it is in reality more common in middle aged men, as in this case.
Striking high signal in demonstrated in the TIRM sequences, especially when compared to the normal left side on the coronal sequences.
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