1. Tumors and tumor like lesions of maldevelopmental origin;Russel,1989
2. Operative treatment of intracranial epidermoid cysts and cholesterol granulomas: report of 21 cases;Altschuler;Neurosurgery,1990
3. Surgical treatment of epidermoid cysts of the cerebellopontine angle;Samii;J Neurosurg,1996
4. Anatomie Pathologique du Corps Humain;Cruveilhier,1829
5. Intracranial lesions (differential diagnosis by anatomical location): cerebellopontine angle and internal auditory canal;Osborn,1991