Human Papillomavirus and Anal Cancer: Prevalence, Genotype Distribution, and Prognosis Aspects from Midwestern Region of Brazil

Figure 4

Survival curves for patients with anal cancer according to clinical and pathological characteristics. (a) Gender; (b) tumor histological type; (c) metastasis (M); (d) HPV detection. Others include basaloid carcinoma, neuroendocrine, and cloacogenic.

(a)

(b)

(c)

(d)