Fig. 2
a The histological view showing the inflamed appendiceal wall, with parasites in the lumen (black arrows). A hyperplastic lymphoid follicle is also seen in the mucosa and submucosa (hematoxylin–eosin-saffron × 100). b Another section of the appendix showing histological signs of intense acute inflammation: epithelial ulceration and suppurative necrosis (hematoxylin–eosin-saffron × 100)