Fig. 4
From: Giant colloid cyst of the third ventricle: challenges in management
a Cyst lined by squamous epithelium. Underlying tissue shows areas of hemorrhages, cholesterol clefts, foreign body giant cells and hemosiderin laden macrophages(H&E,X100), (b) Cyst lined by cuboidal lining epithelium. Underlying tissue shows mixed inflammatory cells and congested blood vessels (H&E,X100) and (c) Cyst lined by cuboidal lining epithelium. Subepithelial tissue shows acute inflammatory cells and congested blood vessels (H&E,X400)