الفهرس 
INTRODUCTION and Aim of the work.Only 14 pages are availabe for public view
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Abstract
Some evidellces exist for both immulle mediated abnormalities and direct cytotoxic damage to ellterocytes caused by coccidiosis. CrY/7fo,fiporidium causes gastroilltestinal ililless,;: more ill immullocompromised patiellts, Activatioll of Crypl(),,’p()ri(liuf11 followillg ami-lleoplastic treatmellt may trigger diarrheal illness, A possible mechallism for this activation may be related to impaired T-cell function. Malnourished children are at increased risk for Crypto,’poridilif11 illfectioll and should be considered immunocompromised. III tile presellt study, we tried to put Co(.’cidia, beillg a group of smalJ intestinal protozoan parasites, tinder ilie scope to dctermille their role ill tile production of gastroilltestillal illness, sometimes life-threatening, in some groups of patiellts with immunodeficiency states using direct and indirect metllods of diagnosis and stressing on Ciypf(),’.p()ri(lii{//i, We also compared the differellt methods of diagnosis. All studied patients were having diarrhea a.1ld were classified into 5 groups. . Group I: Patients witb Maligna.1lt diseases, not receiving therapy, subgrouped into: A)Hodgkill’S I..-ymphoma. B)Acute lymphocytic leukemia. C)I-Iepatocellular carcinoma. Group II: Patients receivillg chemotherapy for treatmellt of Hodgkin lymphoma and acute Iympllocytic leukemia. Group Ill: Liver cell failure. Grollp IV: Di:1rrllca ill imlllulloCOlllptcllt paticllts.