“…This is probably associated with the widespread use of screening colonoscopy [1,8,9]. According to Japanese and Korean data, rectal NENs are slightly more common in the male population (M/F ratio -1.5 and OR 1.9) [11], whereas American and Polish data demonstrate a similar prevalence of these neoplasms in both sexes [2,5,9]. In the USA, the highest incidence of these neoplasms is found in Asian (OR = 10) and black patients (OR = 1.96) [8,11].…”