Hepatobiliary alterations in massive biliary ascariasis: histopathological aspects of an autopsy case

Os autores apresentam os aspectos histopatologicos encontrados no figado de um caso de autopsia de ascaridiase biliar macica. A intensa colangite foi o aspecto predominante, mas outras lesoes tambem foram encontradas, tais como metaplasia pilorica e intestinal, hiperplasia epitelial com papilomas intraductais, e por vezes padrao adenomatoso. Restos do helminto foram encontrados fortemente aderidos ao epitelio, sendo intensa a positividade de mucopolissacarides, principalmente acidos, na borda luminal do epitelio ductal e em glandulas proliferadas ao redor dos ductos. Os autores discutem a semelhanca da ascaridiase biliar com a colangio hepatite oriental, e sugerem que o processo inflamatorio e a presenca de restos do verme sao responsaveis pelas alteracoes hiperplasicas e metaplasicas, analogamente ao que ocorre na clonorquiase, fascioliase e esquistossomose

Hepatobiliary alterations in massive biliary ascariasis. Histopathological aspects of an autopsy case.

Hepatobiliary alterations found in an autopsy case of massive Biliary Ascariasis, are reported on histological grounds. Severe cholangitis was the main finding, but other changes were also detected, such as pyloric and intestinal metaplasia, hyperplasia of the epithelial lining, with intraductal papillomas and adenomatous proliferation. Remnants of the worm were observed tightly adhered to the epithelium, forming microscopic intrahepatic calculi. Mucopolysaccharides, especially acid, showed to be strongly positive on the luminal border, and in proliferated glands around the ducts. The authors discuss the similarity between such findings and Oriental Cholangio-hepatitis, and suggest that inflammation and the presence of the parasitic remnants are responsible for the hyperplastic and metaplastic changes, similarly with what occurs in chlonorchiasis, fascioliasis and schistosomiasis.

[Chronic hepatitis non-A, non-B hepatitis: a clinical and morphologic study]. / Hepatite crônica não-A, não-B: estudo clínico e morfológico.

Few data on chronic non-A, non-B hepatitis (NANB-CH) have been published so far in our country. We have studied 85 patients classified into four groups: I. post-transfusional (PT), 35 patients (41.2%); II. risk group (GR), including health professionals and drug addicts, 11 (12.9%); III. sporadic with a well defined beginning (EBD), 19 (22.4%) and IV. sporadic with ill-defined beginning (END), 20 (23.5%). The mean age in group I was significantly higher than in groups II and III. A polyphasic pattern of serum aminotransferases and severe histological forms were observed in all groups. It is concluded that the way of infection has probably no prognostic importance.