label: Retinoblastoma cT1b TNM Finding v7
label_lc: retinoblastoma ct1b tnm finding v7
description: "At least one tumor is greater than 3 mm in largest dimension or located closer than 1.5 mm to the optic nerve or fovea.  No retinal detachment or subretinal fluid beyond 5 mm from the base of the tumor. (from AJCC 7th Ed.)"