The anal carcinoma is a rare malignant epithelial tumor entity, in which two forms, the carcinoma of the anal edge (. Fig. 9.29) and of the anal canal (. Figs.
29 Anal Cancer John C. Anoscopy is considered the gold standard for the diagnosis of most anal and of the anal canal.4. The anal canal can be defined in two different ways, as the surgical anal canal or anatomical surgical canal (Fig. 14.3).