3.1 Gliomas

CASE #1:  

  FINDINGS: 
              enhancing mass of the roof of the fourth ventricle
              hyperintense mass with secondary hydrocephalus and transependymal resorption

CASE #2:  

  FINDINGS: 
              Voluminous ring enhancing lesion in frontal lobes with mass effect on frontal horns of lateral ventricles and possible infiltration of corpus callosum.

CASE #3:  

  FINDINGS: 
              T1: isointense mass that involves the intraocular and intracanalar portions of the optic nerve. The lesion is hyperintense on T2 and shows homogeneous enhancement with gadolinium.

CASE #4:  

  FINDINGS: 
              Hypointense on T1WI, hyperintense on T2WI mass localized in the right frontal posterior and insular regions with surrounding edema and mass effect on the sulci and on the right lateral ventricle. Shift of the midline structures to the left side. Important annular and heterogeneous enhancement of the lesion after gadolinium injection. Also, note enhancement of the right sylvian meninges.