Almost synchronous appearance of bilateral retinoblastomas.
D005134:Eye Neoplasms / Q000235:genetics*; D006579:Heterozygote; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008957:Models, Genetic; D009378:Neoplasms, Multiple Primary / Q000235:genetics*; D012175:Retinoblastoma / Q000235:genetics*