Nodular regenerative hyperplasia of the liver associated with the toxic oil syndrome: Report of five cases

Authors

  • José A. Solis-Herruzo M.D.,

    Corresponding author
    1. School of Medicine, Universidad Complutense, Unit of Gastroenterology, Departments of Medicine and Pathology, Hospital “I° de Octubre,” 28041 Madrid, Spain
    • Servicio de Aparato Digestivo, Departamento de Medicina, Hospital “1° de Octubre,” Carretera de Andalucia 5,4, 28041 Madrid, Spain
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  • José V. Vidal,

    1. School of Medicine, Universidad Complutense, Unit of Gastroenterology, Departments of Medicine and Pathology, Hospital “I° de Octubre,” 28041 Madrid, Spain
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  • Francisco Colina,

    1. School of Medicine, Universidad Complutense, Unit of Gastroenterology, Departments of Medicine and Pathology, Hospital “I° de Octubre,” 28041 Madrid, Spain
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  • Fermin Santalla,

    1. School of Medicine, Universidad Complutense, Unit of Gastroenterology, Departments of Medicine and Pathology, Hospital “I° de Octubre,” 28041 Madrid, Spain
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  • Gregorio Castellano

    1. School of Medicine, Universidad Complutense, Unit of Gastroenterology, Departments of Medicine and Pathology, Hospital “I° de Octubre,” 28041 Madrid, Spain
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Abstract

Nodular regenerative hyperplasia of the liver developed in five patients who had the toxic oil syndrome caused by ingestion of adulterated cooking oil. This hepatic complication was detected from 19 to 37 months (mean-2.5 years) after the onset of the toxic oil syndrome. Nodular regenerative hyperplasia was asymptomatic, although all patients had persistently abnormal liver function. Hepatomegaly was present in four cases, mild jaundice in three and signs of portal hypertension in two. Pathogenesis of nodular regenerative hyperplasia in toxic oil syndrome is unknown, but probably microcirculatory disturbances within the liver might have played a role. Fibrosis in Zone 3, sinusoidal dilatation and occasionally intralobular hemorrhage were seen in three cases; in one of them, characteristic lesions of venoocclusive disease were also present. In another case, endarteritic changes of hepatic arterioles were evident.

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