Figure 1.

Histologic findings of schistosomal appendicitis. A: Low power view of the appendiceal walls in schistosomal appendicitis. Acute inflammation is recognized throughout the walls. Schistosomal eggs are seen in the mucosa and muscular layer. The serosa shows acute serositis (right). HE, × 40; B: Schistosomal eggs in the mucosa. Foreign body granulomatous reaction is recognized. Some eggs show calcification. HE, × 200; C: Schistosomal eggs in the subserosa. The eggs were located within vasculatures. Severe infiltrations of neutrophils and hemorrhage are recognized. HE, × 200.