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Case 19. Cryptosporidiosis
(15 y-o M)
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| Ileal biopsy from a healthy boy suffering from severe diarrhea, who stayed in a farm in Hokkaido for summer vacation with a close contact with cow | ||||
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Key words : Cryptosporidium
parvum, acute enteritis, AIDS
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zoonosis
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| A small number of tiny basophilic particles seen on the surface of the enterocytes (HE) | Tiny basophilic pathogens infected within the brush border of the enterocytes (HE, oil immersion) | |
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| Reference case 19A Cysts of Cryptosporidium parvum in feces. Acid-fast cysts in diarrheal stool in an African AIDS patient (Ziehl-Neelsen) |
Reference case 19B Opportunistic cryptosporidiosis in a Japanese AIDS patient. Autopsied jejunum with infection of Cryptosporidium parvum in the brush border of enterocytes (HE) |
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| Reference case 19C Opportunistic cryptosporidiosis in a Japanese AIDS patient. Small pathogens in the brush border are identified by a 1:500 diluted serum of a healthy individual who suffered and recovered from acute, self-limiting cryptosporidiosis (indirect immunoperoxidase staining). |
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