A case of alcoholic hepatitis demonstrating focal fatty infiltration of the liver on computed tomography.

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Focal fatty infiltration of the liver is a newly recognized entity that may be confused with primary neoplasm or tumor metastasis on computed tomography.<BR>We report a 31-year-old woman with a history of chronic alcoholism. Physical examination revealed jaundice, marked hepatomegaly and ascites. Laboratory studies revealed mild elevation of bilirubin, AlP, GOT, γ-GTP and marked leukocytosis. Abdominal CT showed a large area of decreased density in the right lobe. The radionuclide scan demonstrated the area of diminished activity located in the central portion of the right lobe. Ultrasonography demonstrated high echoic mass shadows in the right lobe. The rapid disappearance of the low density area on CT was recognized.<BR>The liver biopsy specimen revealed fatty metamorphosis, alcoholic hyaline bodies, pericellular fibrosis and mild lobular disorganization.<BR>Focal fatty infiltration can mimic focal hepatic lesions and repeat CT scans are useful in diagnosis.