Abstract
1) We have reported our observation on an atypical case of tuberous sclerosis in which adenoma sebaceum and epileptic seizures were found, but it not accompanied with mental deterioration.
2) The histopathological findings in adenoma sebaceum, calcification within the brain and lungs in the x-rays and the abnormal signs in E. E. G, coincide with those observations heretofore reported.
3) While angioma and a definite epileptic signs in E. E. G. were observed in the younger brother, it would be difficult to conclude that this is another case of tuberous sclerosis, but it may at least be said that it has similar hereditary dispostion.
4) By investigating the family lineage in this patient, heredobiological problems were.e discussed.
