within the papillary group , patients with occult cancer , i.e. , thyroid tumor not larger than 1.5 cm , and intrathyroidal cancer , i.e. , thyroid tumor larger than 1.5 cm but not penetrating the thyroid capsule , had a cumulated survival rate not significantly different from the expected rate , and only 1 of the 46 patients belonging to these two subgroups , died from tc .
C0006826
cancer
C0549473
tc