It was also shown that in well differentiated lesions less than 30mm in diameter with no lymphovascular invasion invasion only to the superficial portion of the submucosa Sm1 the risk of invasion to regional lymphatic nodes was negligible 95%, IC, 0-3.1%.
Además, se demostró que en lesiones <30 mm, bien diferenciadas, sin invasión linfovascular y ocupando solamente la porción superficial de la submucosa Sm1 el riesgo de irrupción a ganglios linfáticos regionales fue insignificante 95%, IC, 0-3,1%.