Intraocular retinoblastoma – Ophthalmology MCQ

Which of the following is false regarding intraocular retinoblastoma?

A. 94% cases are sporadic
B. Individuals with sporadic retinoblastoma do not pass their genes to their children
C. Reese Ellsworth classification is used for predicting visual prognosis following radiotherapy
D. Tumour calcification can be detected by an ultrasound scan

Correct answer : B. Individuals with sporadic retinoblastoma do not pass their genes to their children

One third of sporadic cases of retinoblastoma are heritable. The remaining sporadic cases do not pass their genes to their children.