The risk of metastasis for tumors smaller than 1 cm is smaller than 3%, but the risk increases to 7% for tumors between 1cm and 2 cm, and if there is invasion of muscular tissue it rises to 46%.
El riesgo de metástasis para tumores menores de 1 cm es de menos del 3%, entre 1 y 2 cm sube a 7% y si hay invasión a la muscular se eleva hasta el 46%.