Fig. 3From: Heterogeneity in retinoblastoma: a tale of molecules and modelsRetCam images of eyes affected by retinoblastoma. a, b An example of bilateral tumors. Right eye (a) presents, with intergrowth between, two initially separate tumors. c Unifocal and d multifocal tumors. Tumor before (e), and after (f) treatment with intra-arterial chemotherapy. Note the presence of new multifocal tumors after treatment. Arrows indicate tumorsBack to article page