To the best of the author's knowledge, bilateral megalopapilla are entities with an unknown inheritance pattern, and this is the first case presentation of bilateral megalopapilla in twin siblings. One of the twins presented to the outpatient department with a frontal headache, while the other was asymptomatic. Upon examination of the first family members, the asymptomatic paternal grandfather had a similar presentation of megalopapilla. As a result, this report will help in determining the genetic pattern of development of this optic disc anomaly, as well as its crucial differential diagnosis.
Keywords: Megalopapilla; optic disc anomaly; twins.