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Hepatic portal venous gas (HPVG) is an uncommon radiological sign and often portends significant underlying abdominal disease. A number of conditions may produce this sign and identifying the underlying etiology is essential for management. The advent of ultrasonography-color Doppler imaging and computerized tomography has led to more frequent recognition of this condition. This article describes the very rare association of HPVG in a patient with emphysematous pyelonephritis.