Neurofibromatoses et sclérose tubéreuse de bourneville

[Tuberous sclerosis and intracranial aneurysms: a rare association]

INTRODUCTION

Tuberous sclerosis is an autosomal dominant inherited phakomatosis. It is associated with a wide variety of central nervous system abnormalities, but intracranial aneurysms are rare.

CASE REPORT

We report a 34-year-old patient fulfilling the diagnostic criteria of tuberous sclerosis in association with intracranial aneurysm.

DISCUSSION

This association has been reported in only 17 other cases of tuberous sclerosis. We discuss the etiopathogenic mechanisms, preferential localizations and the various therapeutic propositions.

Imagerie cérébrale de la sclérose tubéreuse de bourneville chez l’enfant

Tuberous sclerosis (TS) is a frequent phakomatosis, with autosomal dominant transmission. The diagnosis relies on a list of criteria (2 major criteria or 1 major criterion and 2 minor criteria). Brain MRI is very important for diagnosis, already showing the major signs during fetal life: subependymal nodules, tubers and giant cell astrocytomas. In childhood, FLAIR sequences are the more interesting while in fetuses, neonates and infants T1 sequences are required because of the myelination process.