History of seizures and multiple hypopigmented macules over the back (ash leap patch) suggest the diagnosis of tuberous sclerosis. Criteria for diagnosing tuberous sclerosisCriteria for diagnosis of tuberous sclerosis complex have been revised. The features have been divided into major features and minor features : -Definitive diagnosis ---> Either 2 major features or 1 major plus 2 minor features. Probable diagnosis --> 1 Major plus 1 minor features Possible diagnosis      -->        1 Major feature or 2 or more minor features