Five biopsies must be taken: one sample each from the greater and lesser curvatures of the antrum from points two to three centimeters from the pylorus, one sample each from the greater and lesser curvatures of the corpus from points eight centimeters from the cardia, and one from the angular incisure 8.
Se deben tomar 5 biopsias de la siguiente manera: dos muestras antrales a partir de las curvaturas mayor y menor 2 a 3 centímetros proximales al píloro, dos muestras del cuerpo a partir de las curvaturas mayor y menor 8 centímetros distales del cardias y una muestra a partir de la incisura angularis 8.