Stage 0 Childhood Retinoblastoma by Toronto Guidelines v2

**Semantic type:** Neoplastic Process

**Definition:** The tumor is confined to the globe. Enucleation has not been performed. (The patient is treated "conservatively" with either focal therapies or chemotherapy.) (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.)

**Synonyms:** - Retinoblastoma Stage 0 - Stage 0 Pediatric Retinoblastoma by Toronto Guidelines v2 - Stage 0 Retinoblastoma