What Does RB Mean In Medical Terms?
What Does RB Mean In Medical Terms? Retinoblastoma: A malignant eye tumor usually seen in children, that arises in cells in the developing retina that contain cancer-predisposing mutations in both copies of the gene RB1. Abbreviated RB. The most common sign of RB is a white pupillary reflex to light (leukocoria). Whats does RB mean?