Aras Part Medical International Press International Journal of Medical Parasitology and Epidemiology Sciences 2766-6492 3 3 2022 09 29 The Appendix: A Reservoir for Giardiasis Intestinalis 77 79 10.34172/ijmpes.3111 EN Patrice Bouree https://orcid.org/0000-0001-9657-2924 Francine Bisaro Alireza Ensaf Journal Article 10.34172/ijmpes.3111 2022 09 08 2022 09 18 Giardia intestinalis is a highly common parasite in humans. It is cosmopolitan and can remain asymptomatic. Most commonly, Giardia infection causes intestinal disorders such as diarrhea and abdominal pain. Severe infection can produce a malabsorption syndrome. Refractory giardiasis is due to some reservoirs such as the diverticulum or gallbladder. The authors present an uncommon case of chronic giardiasis due to the appendix as the reservoir. The parasitological examination of the gall-bladder was normal, while the appendix revealed a great number of Giardia. The patient was cured after the appendectomy.