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Piriformis syndrome in a 35-year-old female patient with a history of a traffic accident involvement 7 days previously, and complaining of persistent hip pain radiating to the posterior of her right thigh, as well as numbness in the right foot. Axial CT image reveals an intramuscular piriformis haematoma causing enlargement of the muscle. In addition, thickening and anterior displacement of the right sciatic nerve are seen (arrows).
