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[Colloid cyst of the fourth ventricle. Apropos of a case]
1Service Central d'Anatomie et de Cytologie Pathologiques, Hôpital La Rabta-Bab Saadoun, Tunis.
Abstract:
We report a case of a 29 year old patient with a colloid cyst of the fourth ventricule. Colloid cysts or epithelial cysts are exceptional in this site. A common neuroepithelial origin with third ventricule cysts could be explained by similar embryological developments of the prosencephalic and the rhombencephalic roofs. The diagnosis can only be made by histological examination.