Avascular necrosis of hip (MRI)

Case contributed by Shailaja Muniraj
Diagnosis certain

Presentation

Both side groin pain. Pain worsened on weight bearing.

Patient Data

Age: 40 years
Gender: Female
x-ray
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The bilateral joint spaces shows mild narrowing with femoral articular surface irregularity.

There is a well defined expansile lesion with sclerotic borders and narrow zone of transition noted in the left proximal femoral diaphysis. No periosteal reaction. No pathological fracture

This study is a stack
Axial
non-contrast
This study is a stack
non-contrast
This study is a stack
Sagittal
non-contrast
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CT confirms the radiograph findings.

This study is a stack
Coronal PD
fat sat
This study is a stack
Sagittal
PD fat sat
This study is a stack
Axial
T1
This study is a stack
Coronal
T1
This study is a stack
Coronal
STIR
This study is a stack
Axial
STIR
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Info

Bilateral femoral heads show early collapse with subchondral fracture and diffuse sclerosis.

The proximal femur shows diffuse edema.

Left proximal femur simple bone cyst. No abnormal soft tissue component within.

Bilateral small volume hip joint effusion also seen.

Case Discussion

Bilateral avascular necrosis of hip - stage III.

Left femoral simple bone cyst.

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