Combined infection by enterobius vermicularis and cryptosporidium protozoan in appendix

Acute appendicitis caused by combined infection of Enterobius vermicularis and cryptosporidium protozoa in a normally looking appendix described. The patient is a 9-years-old immunocompetent boy who was admitted with acute abdomen and vomiting of one day duration. We believe that this is the first case in the literature that described such a combination. We report this case to increase the awareness of the physicians as well as the pathologists in diagnosing of cryptosporidiosis