Figure 2
Photomicrographs of haematoxylin and eosin-stained sections of the feline teratoma of a perianal region (HE stain). (A) Normal skin with epidermal and dermal layers containing hair follicle, sebaceous, sweat gland units and adipose tissue (bar = 200 μm); (B) A nodular structure composed of adipose tissue surrounded by connective tissue and lined by squamous stratified epithelium (bar = 200 μm), the inset showing the detail of these structures (bar = 50 μm); (C) Island of woven bone resembling long bone (black arrow) (bar = 200 μm), and (D) Structures resembling respiratory tissue consisting of glandular components (black arrow) surrounded by connective tissue lined by columnar pseudostratified ciliated epithelium (bar = 100 μm), the inset showing the ciliated columnar epithelia (bar =10 μm).