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Brain Dev. 1979;1(1):38-48.

Computed tomography in tuberous sclerosis--with special reference to relation between clinical manifestations and CT findings.


Concerning the clinical signs and symptoms, we noticed skin white macula in 87%, adenoma sebaceum in 53%, mental retardation in 75%, retinal phacoma in 54% and seizure in 92%. Numbers of nodules ranged from zero to 11, and showed no correlation with aging. Half of the cases showed slight ventricular dilatation, one quarter showed moderate dilatation and the remainder were normal. There was no definite correspondence between size of the ventricle and number of nodules. There were relatively many cases with normal mental state in the group with normal ventricles. In adult cases a large ventricle does not always mean poor prognosis in mental state. Almost all of the cases with cortical atrophy had mental retardation. In the group with moderate dilatation infantile spasms were the most frequent type of seizure. On the contrary, grand mal was most frequent in the normal group. As for the position of nodules there was no difference between the normal and dilated groups. Nodules were predominantly seen in the lateral aspect of the body, trigone of the lateral ventricle and adjacent to the foramen of Monro. Asymmetrical lateral ventricles were noticed in 18%. Incidence of laterality increased as dilatation proceeded. It was larger on the left side in 9 out of 11 cases. We have no reasonable explanation of this tendency. There was one case with a tumor which was verified by enhanced CT. There were five cases with brain anomalies.

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