Although indigo carmine and methylene blue are often used to screen for sporadic adenoma, crystal violet, as an absorptive stain, offers advantages for patients with early invasive cancer or for detailed observation using a non-traumatic catheter after washing the lesion with lukewarm water containing pronase Pronase MS Figure 1, 2 7.
¿Es aconsejable dispersar la tinción en todo el colon y el recto para identificar lesiones significativas? ¿Cuándo debe emplearse la magnificación?