Appendicular Sinus as a Cause of Chronic Psoas Abscess in a Renal Transplant Recipient: A Case Report

A psoas abscess is a condition with vague symptomatology that is associated with potentially life-threatening suppurative myositis of the iliopsoas muscular compartment. Immunocompromised patients run an increased risk of developing suppurative or chronic abscesses from acute foci. The presence of a solid-organ transplant, and the attendant need for immunosuppressant therapies and impaired renal provide additional factors that could contribute to the comorbidities of this condition. Here, we present a 61-year-old white man with a functioning renal transplant who developed a chronic psoas abscess associated with an appendicular sinus that required serial computed tomographic-guided drainages during 8 years. We highlight the difficulties and limitations of managing a psoas abscess. We conclude that a conservative approach toward managing a chronic psoas abscess may be associated with good long-term patient and graft functions, with minimal risk to the patient.