Congenital Oral Squamous Cell Carcinoma in a Suckling Piglet

Figure 2

Suckling piglet. Oral lesion. Histopathology. Cords and islands of neoplastic cells almost entirely infiltrate the lamina propria of the oral mucosa (a). Inside the proliferation, neoplastic cells undergo keratinization and tend to arrange as concentric layers, thus forming a horn pearl draft (black asterisk). At this magnification, prominent nucleoli are also evident, as well as several mitotic figures (black arrowheads; (b)). H&E, original objective 10x (a) and 20x (b).

(a)

(b)