Acute Renal Carbuncle

Abstract
A renal carbuncle (cortical abscess) is an important and treatable consideration in the differential diagnosis of renal mass lesions. Diagnosis is accomplished using a combination of clinical, urographic, arteriographic and ultrasonographic findings. Ultrasound is an accurate and less invasive alternative to arteriography. Needle aspiration of abscess contents may give a bacteriologic diagnosis. Nonsurgical treatment with antibiotics alone may be curative. Five [human] cases are presented, and clinical and radiologic features are reviewed.

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