Fanconi’s syndrome, interstitial fibrosis and renal failure by aristolochic acid in Chinese herbs
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Aristolochic acid-associated nephropathy (AAN) has been identified as a separate entity of progressive tubulo-interstitial nephropathy. Its characteristic pathological findings, including hypocellular interstitial fibrosis, intimal thickening of interlobular and afferent arterioles with glomeruli sparing or mild sclerosis, have been identified. Many cases of AAN in adults have been reported in Taiwan as well as throughout the world, but it has seldom been described in children. We report on a 10-year-old boy who presented with severe anemia, Fanconi’s syndrome, and progressive renal failure. Renal biopsy revealed typical findings of AAN. Aristolochic acids I and II were identified from a Chinese herb mixture ingested by the boy. AAN was diagnosed after other etiologies had been excluded. The case demonstrates the hazards of Chinese herbs with regard to children’s health in Taiwan and suggests that more attention should be paid to this issue.
KeywordsAristolochic acid-associated nephropathy Aristolochic acid Fanconi’s syndrome Interstitial nephropathy
We are grateful to Dr. Chung-Shi Yang and Ms Pi-Ju Tsai, of the Department of Education and Research of Taichung Veterans’ General Hospital, for performing the analysis of the herbal mixture.
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