Mitochondrial alterations in nonalcoholic fatty liver disease. Pediatric case description of three submitted sequential biopsies

Nonalcoholic fatty liver disease (NAFLD) is a clinical-pathological syndrome that encompasses a wide spectrum of morphologic alterations, ranging from simple hepatic steatosis to a more severe stage, known as nonalcoholic steatohepatitis (NASH). The purpose of this clinical report was to contribute...

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Bibliographic Details
Published in:Journal of gastrointestinal and liver diseases : JGLD 2009-06, Vol.18 (2), p.215-219
Main Authors: Da Silva, Gustavo Henrique, Coelho, Kunie Iabuki Rabello, Coelho, Cláudio Antônio Rabello, Escanhoela, Cecilia Amélia Fazzio
Format: Article
Language:English
Subjects:
Biopsy
Fatty Liver - diagnostic imaging
Fatty Liver - pathology
Hepatomegaly
Humans
Hypertrophy
Infant
Mitochondria, Liver - pathology
Mitochondrial Size
Ultrasonography
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Summary:Nonalcoholic fatty liver disease (NAFLD) is a clinical-pathological syndrome that encompasses a wide spectrum of morphologic alterations, ranging from simple hepatic steatosis to a more severe stage, known as nonalcoholic steatohepatitis (NASH). The purpose of this clinical report was to contribute to the understanding of mitochondrial alterations in NAFLD. The child (13-month-old) underwent initial biopsy in the year 2000 and was diagnosed with diffuse macro and microvesicular steatosis. Two additional biopsies were performed in 2001 and 2004. A high percentage of microvesicular steatosis was observed in the biopsies performed in 2000 and 2001. Mitochondrial size was slightly increased in the biopsy performed in the year 2000, significantly increased in 2001 and decreased in 2004. The presence of "mitochondrial hypertrophy" in the hepatocytes of an asymptomatic pediatric patient whose disease presentation was typical of NAFLD, excluding other pathological processes, allowed us to suspect that such a defect was considered the primary mitochondrial disorder.
ISSN:1841-8724