Isolated Renal Involvement Requiring Surgical Treatment in Systemic Cat Scratch Disease

Cat scratch disease (CSD) is a self-limiting infectious disease that develops after a cat bite or scratch, caused by the Gram-negative bacillus Bartonella henselae. The disease is generally characterized by fever and regional granulomatous lymphadenopathy, but in 5-10% of cases it can occur as a systemic disease and lead to various diseases. A 31 year old healthy woman applied to the internal medicine clinic with right side pain. He was referred to the urology clinic after the urinary system USG revealed a 4x3cm cystic mass in the right kidney. There was no finding in the patient"s history other than a cat bite 3 months ago. Radiological evaluations showed RCC suspicion in the right kidney with the classification of Bosniak type 3 cyst. Upon being reported as a medical condition, the patient underwent laparoscopic partial nephrectomy. Multiple abscesses in the liver and spleen, and microabscesses in both kidneys, accompanied by systemic inflammatory symptoms, have previously been reported in systemic CSD. However, as far as we know, this is the first case of Bartonella henselae in the literature showing isolated single kidney involvement of this size without showing systemic inflammatory symptoms.