Abstract
A case of perforative acute appendicitis with a massive infestation of Trichocephalus trichiurus is presented. It was demonstrated microscopically the fistulous way in the appendiccal wall permitting the entrance of the fecal matter from the appendix lumen as well as adult worms and eggs, into the abdominal cavity. The absence of an inflamatory exudate of the suppurative type generally found in acute appendicitis was observed; the discrete inflammatory reaction and the dissociation of the tissues led to the idea of a lytic ferment produced by the worms. It is possible that the presence of an infectious hepatites, in the present case, diminishing the patient resistence, plays a role in making easy the appendix perforation.
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