ABSTRACT
Primary epithelioid hemangioendothelioma (EHE) of the central nervous system is an extremely rare sarcoma of vascular origin. Imaging findings have been reported for few cases. Herein, we present a case of intracranial EHE manifesting as spontaneous intracranial hemorrhage. The tumor presented as a well-demarcated hemorrhagic lesion. It had a peripheral location, and showed signs of two-layered target-like mild enhancement in the early phase and gradual fill-in delayed enhancement on MRI.
ABSTRACT
Glioneuronal tumor with neuropil-like islands (GTNI) is a rare and novel mixed neuronal-glial tumor that typically affects the supratentorial cerebral hemispheres of adult patients. It is extremely rare for GTNIs to be in the spine of pediatric and adolescent patients, and there have been no reports of infratentorial GTNIs. We report a case of an elderly patient with an anaplastic, infratentorial GTNI that occurred in the cerebellum, including describing MRI features of our case.