Fig. 2
a Bilayered daughter cysts developing in large mother cysts and scolices. The worm produces sediment, so-called hydatid sand (Hematoxylin & eosin (H&E) staining; × 10 original magnification). b Lung sections with mixed chronic inflammation consisting mononuclear cells, eosinophils, and multinucleated giant cells. (H&E staining; × 20 original magnification)