Astrocytome
the astrocytome is a Tumeur infiltrating and slowly evolutionary, developed starting from the cells astrocytaires. The astrocytome belongs to the Gliome S, tumors developed starting from the cells gliales, which constitute fabric of support of the Neuron S, and to which the cells astrocytaires belong. It is an infiltrating tumor of the cerebral hemispheres of the adult, but also of the cerebellum in the child. The astrocytome can correspond to different histological ranks according to cellular differentiation. It can be benign, but it can transform into Astrocytome anaplasic, or, with a degree of more than malignity, in multiform Glioblastome.
Private clinic
The clinical elements in the adult are marked by the late and isolated comitiality (epilepsy great evil or focused epilepsy), but also by Céphalée S, a intracranial hypertension or a progressive driving deficit.In the child, one can also find disorders of the acquisition (walk, position upright), a cérébelleux Syndrome kinetic since the astrocytome touches the hemispheres of the cerebellum préférenciellement.
Diagnosis
At the beginning of evolution, the imagery shows a tumor isodense with the scanner, of or the intêret of IRM, more sensitive to the tracking of this not very vascularized tumor. During the evolution, the scanner shows a tumor hypodense, generally not taking the product of contrast. It is not found of effect of mass since the tumor is infiltrating.A Biopsie can be planned to confirm the diagostic astrocytome, to specify the histological rank.
Treatment
In the event of astrocytome benign, the therapeutic attitude can consist of:- a surgical exérèse if the lesion is accessible to the gesture, or
- a clinical and scannographic monitoring (or by IRM).
A treatment Anti-epileptic can be necessary.
See too
- Syndrome of Li-Fraumeni
External bond
- Association for Research on the Cerebral Tumors