Hydatid cyst of the sacroiliac joint: A case study in Teaching Hospital

Abstract

Hydatid cyst affecting the sacroiliac joint is rare. Signs of sacroiliac joint involvement cause difficulties in differential diagnosis of this rare condition. To describe an unusual case of hydatid disease of the sacrum affecting the sacroiliac joint and to discuss imaging, differential diagnosis, and treatment, a 27-year-old female patient with right buttock pain and sciatica is presented.

Plain radiographs, computed tomography, and magnetic resonance imaging scans revealed destructive expansive lesion located on the right sacrum and extended through the right sacroiliac joint. Surgical curettage of the lesion was performed histopathology examination confirmed hydatid cyst and the patient was treated with albendazole.

This unusual disease should be kept in mind in the differential diagnosis of sacroiliac pain and sciatica.