Transient osteoporosis of the hip

Case contributed by Dr Bahman Rasuli

Presentation

Persistent pain in the left hip and thigh. No history of trauma.

Patient Data

Age: 70 years
Gender: Female

Bone marrow edema pattern at the left femoral head and neck appears low signal on T1 and high signal on T2/PD fat suppression sequences

Left hip joint mild effusion

No cortical irregularity of collapse 

Left-sided iliopsoas bursa

Unremarkable right hip joint.

Case Discussion

Idiopathic transient osteoporosis of the hip is a self-limiting entity of unknown cause, although thought to have a vascular basis and possible overactivity of the sympathetic system.

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