Tuberculous Sacroiliitis with Secondary Psoas Abscess: A Case Report

Tuberculous sacroiliitis secondary to a psoas abscess is rare, only a few sporadic cases were reported in the literature. Tuberculous sacroiliitis is rare, usually unilateral, its symptomatology is misleading, its diagnosis is often delayed or even confused with damage to the hip or lumbosacral hinge, most often related to difficulties exploration of the sacroiliac joint. We report the case of a 66-year-old diabetic patient with low back pain, unilateral right with inflammatory appearance, insidious installation, evolving for about 8 months. The diagnosis of tuberculous sacroiliitis was made after biopsy of the sacroiliac joint. CT and MRI are necessary for lesion diagnosis. Tuberculosis treatment was started and the abscess was surgically drained. The aim of this work was to describe the diagnostic pathway of a patient with tuberculous sacroiliitis in a tropical environment. Conclusion: Tuberculous sacroiliitis, secondary to an abscess of the psoas muscle is an unusual cause of hip pain and is likely to be overlooked due to its atypical presentation.