Retroperitoneal fibrosis with ureteral obstruction secondary to Actinomyces israeli

Area of Science:

• Medical Microbiology
• Urology
• Pathology

Background:

• Actinomycosis is a rare bacterial infection caused by Actinomyces species.
• Genitourinary and retroperitoneal involvement are uncommon manifestations.

Observation:

• A case of Actinomycosis israeli presenting with retroperitoneal fibrosis and ureteral obstruction is described.
• The condition resulted from direct extension of intra-abdominal abscesses to the retroperitoneum.

Findings:

• Histologic identification of sulfur granules during abdominal exploration is the primary diagnostic method.
• The infectious process led to dense retroperitoneal fibrosis, causing ureteral obstruction.

Implications:

• This case highlights a rare but serious complication of Actinomycosis.
• Understanding the pathogenesis and treatment of genitourinary and retroperitoneal actinomycosis is crucial for patient management.