label: Stage III Childhood Retinoblastoma by Toronto Guidelines v2
label_lc: stage iii childhood retinoblastoma by toronto guidelines v2
description: Regional extension: involvement of the orbit and/or preauricular or cervical lymph node extension. (Childhood cancer staging for population registries according to the Toronto Childhood Cancer Stage Guidelines - Version 2. Cancer Council Queensland and Cancer Australia: Brisbane, Australia; 2021.)