Duodeno-jejunal lesions in clinical giardiasis

ABSTRACT

In patients with clinical giardiasis, the duodeno-jejunal mucosa appeared by endoscopy to be pale and oedematous. This abnormality was confirmed when biopsies taken from this area were found, by immunofluorescent study, to be damaged by complement containing immunocomplex including IgM. Further confirmation was obtained by measurement of IgM and C3 levels in the patients' sera. Both components were active as the former was increased and the latter was consumed