Acute Pyogenic Sacroiliitis: Brucellosis and Early Diagnosis

Abstract

Acute pyogenic sacroiliitis is an uncommon condition caused by multiple infectious agents, and a few cases are reported to be caused by brucella species. We present the case of a 20-years-old woman who developed afebrile low back pain of sudden onset, few weeks after the ingestion of unpasteurized milk. Thorough physical examinations with provocative tests were done. Suspected acute sacroiliitis and the brucella etiology were addressed by serological tests completed by multiple imaging. The rapidly favorable response to the antimicrobial therapy was further supportive for the diagnosis.