Figure 2. Mutation detection rate in the retinoblastoma (Rb) cohort. We stratified our cohort based on the Rb presentation into three groups, namely bilateral Rb (BRb), unilateral Rb (URb), and unknown literality, to determine whether the mutation detection rate was correlated with Rb presentation. A: A pie chart depicting an overall mutation detection rate of 66% (33/50 cases) in all Rb cases screened in our cohort. B: In BRb cases, the mutation detection rate was 100% (22/22). C: The mutation detection rate was 30% (6/20) in URb cases. D: In unknown laterality cases, the mutation detection rate was 62.5% (5/8).