Fig. 1
Liver and lung with hydatid cysts. A Liver with several hydatid cysts and lung with one hydatid cyst. B Hydatid cyst with protoscolices within the liver using hematoxylin-eosin staining. C Hydatid cyst with protoscolices within the liver using PAS technique. D High magnification (400×) of protoscolices surrounded by a brood capsule wall. li liver, lu lung, ll laminated layer, ct connective tissue, gm germinal membrane, su sucker, cc calcareous corpuscles, te tegument, rh rostellar hooks, rp rostellar pad, bcw brood capsule wall