Cryptosporidiosis of human large intestine in H.I.V. Report of a case examined under light and electron microscope study.

The Light and Electron Microscope aspects of a colonic Cryptosporidiosis in a H.I.V. patient are reported. The authors stresses the importance of Endoscopic biopsies and Electron Microscopic studies in confirming the microbiologic stool examination for oocysts of the parasite. In particular, by an histological point of view, there are no specific findings indicative for Cryptosporidium infection, apart the identification of the parasite forms with PAS, Giemsa and Grocott stains. Electron Microscopy reveals in this case only the presence of Macrogametocyte.