Paralabral cyst with anterior acetabular labral tear

Case contributed by Nafisa Shakir Batta
Diagnosis certain

Presentation

Right hip pain, intermittent but sharp pain. Avid cricket fan, plays regularly.

Patient Data

Age: 35 years
Gender: Male

Axial oblique images of the right hip reveal a discrete linear fluid signal suggesting labrochondral dissociation with a small 6 mm anterior paralabral cyst.

Axial oblique images of the left hip reveal mildly hyperintense focal signal at the undersurface of the anterosuperior labrum. No significant abnormality.

Case Discussion

Non-arthrographic MRI study of right hip reveals anterosuperior acetabular labral tear with a small paralabral cyst. Findings confirmed on arthroscopy.

Since there seems little evidence to suggest femoro-acetabular impingement or developmentally dysplastic hips, the likely etiology is overuse.

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