Fig. 2

Pathological features of ovarian malignant teratoma in Green Iguana. a The neoplastic mass showing multiple necrotic and haemorrhagic areas and variably in size cystic filled cavities containing reddish to brownish fluid. b Histologic section of the teratoma showing epithelial cells arranged in cords and islet, multifocally circumscribing variable in size cysts filled with a pale eosinophilic and globous material (proteinaceous material). Hematoxylin and eosin (H&E) stain. Bar = 50μm. c Epithelial population organized in acini and tubules lined by 1 to 7 layers of cells. H&E stain. Bar = 50μm. d Small and round islet of nervous tissue, characterized by a central channel surrounded by a concentric layer of epithelial cells and abundant neuropil. H&E stain. Bar = 50μm. e Neoplastic tissue composed by normal and mature cartilage tissue. H&E stain. Bar = 1000μm. f Islets of chondrocytes focally surrounded by a thin layer of mature bone tissue. H&E stain. Bar = 50μm