Renal Actinomycosis ,A Rare Diagnosis Which can Clinically Mimik a Malignancy,Case Report and Review of the Literature

Introduction:Actinomycosis is an unusual infection which usually appears in the thoracic, cervicofacial and abdominal areas. Renal actinomycosis is rare, has not been reported in children, hitherto. Case Presentation:An 8-year-old boypresented with fever, weight loss and flank pain two weeks after sore-throat. As the imaging studies were in favor of malignant tumor of right kidney, he underwent right radical nephrectomy.Pathologic study revealed Xanthogranulomatous pyelonephritis and actinomyces bacterial colonies. Conclusion:Renal actinomycosis is difficult to diagnose because of its non-specific clinical findings and near similarity to other inflammatory and tumoral conditions. Early diagnosis is important for medical treatment and decrease of un-necessary surgery. Using auxiliary diagnostic methods can be helpful in this aspect.Percutaneous core needle biopsy or fine needle aspiration possesses higher accuracy and specificity in comparison with other methods.

کلیدواژه ها:

renal ، actinomycosis