SA Journal of Radiology
versão On-line ISSN 1027-202X
DU TOIT, Jacqueline et al. Cystic hemispheric medulloepithelioma. S. Afr. J. radiol. (Online) [online]. 2015, vol.19, n.2, pp. 1-5. ISSN 1027-202X. http://dx.doi.org/10.4102/sajr.v19i2.915.
Medulloepithelioma is a rare primitive embryonal tumour of the central nervous system which typically occurs in early childhood. The histopathological appearance has been confused with primitive neuroectodermal tumours (PNETs), but medulloepitheliomas have a more aggressive clinical course. Imaging typically demonstrates a well-circumscribed, poorly or non-enhancing solid mass, with cyst formation being infrequent. We report the imaging findings in a case of a cystic hemispheric medulloepithelioma. The importance of considering this diagnosis is discussed in view of the propensity to aggressive recurrence in subtotal resection.