LONG-TERM EVALUATION OF ASYMPTOMATIC PATIENTS OPERATED ON FOR INTRACRANIAL EPIDERMOID CYSTS - COMPARISON OF THE DIAGNOSTIC-VALUE OF MAGNETIC-RESONANCE-IMAGING AND COMPUTER-ASSISTED CISTERNOGRAPHY FOR DETECTIONOF CHOLESTERINE FRAGMENTS

Magnetic resonance imaging (MRI) and/or computer-assisted cisternograp hy (CAc) assessment of latent late recurrences in long-term asymptomat ic patients surgically treated for intracranial epidermoid cyst is her e presented. MRI was exclusively utilized in one patient; CAc was excl usively employed in three patients with metalic operative clips; both CAc and MRI were employed in another four patients. CAc appears to be more reliable than MRI in detecting cholesterin fragments in asymptoma tic patients operated on for intracranial epidermoid cyst.