Fig. 3From: Acute suppurative appendicitis associated with Enterobius vermicularis: an incidental finding or a causative agent? A case report a A gravid female parasite with two lateral characteristic alae (black arrows) and uterus filled with many eggs (red arrows) (hematoxylin–eosin-saffron × 400). b Histological view of the male parasite with its testicular structures (red arrow) and two lateral alae (black arrows) (hematoxylin–eosin-saffron × 400)Back to article page