Data from Montenegro, Ramírez, Muñetón, Isaza, & Ramírez 36 that were collected between 1980 and 2000 showed that 28% of cases were located in the descending colon and 42% in the sigmoid colon.
Los datos de Montenegro y colaboradores, recopilados entre 1980 y 2000, señalan que un 28% de los casos se localiza en el colon descendente y un 42%, en el sigmoide.