Abstracts

Rationale: Intracranial lipomas are accepted to be rare congenital malformation and are asymptomatic and usually an incidental finding on imaging. The aim of this study is to investigate the clinical characteristics, neuroradiological findings, and associated brain malformations of intracranial lipomas. Methods: Twenty two patients who diagnosed with intracranial lipomas from August 2005 to July 2011 were included in the study. Presenting symptoms, neurological findings, neuroradiological findings including accompanying pathologies were retrospective evaluated. Results: Ten (45%) were male and twelve (55%) were female. The average age was 39.5 (range: 2-73). The most frequent reasons for evaluation were headache (n=9), dizziness (n=3), and seizure (n=3). The most frequent intracranial locations of the lipomas were pericallosal area (n=8) and quadrigeminal cistern (n=6). Other locations were including cerebral cortex, choroid plexus of a lateral ventricle, interpeduncular cistern, ambient cistern, middle cranial fossa and cerebellar vermis. Four patients were associated with brain anomalies; falcine sinus and a parietal bony defect, a subcortical heterotopia, diffuse brain atrophy, and an arachnoid cyst. No remarkable abnormal physical examination and complications of the lipomas was noted. Conclusions: The most frequent location of intracranial lipomas was pericallosal area. Although almost intracranial lipomas were asymptomatic, careful radiologic evaluation is needed to detect associated pathologies.