INTRODUCTION: @entity11 are characterized by a infiltrative pattern of growth, with cellular migration along the white matter fiber tracts, exophytic growth in low-grade @entity11 has not been described yet. A case of @entity11 with slow growing and an exophytic component is presented. CASE REPORT: 55 year-old male, with motor partial @entity410 . MRI shows a WHO grade II @entity3271 infiltrating the superior frontal gyrus with exophytic extension above the precentral gyrus. Clinical and radiological follow-up was performed for 23 years. Volumetric assessment of @entity5 progression revealed a growth rate of 0.5 mm per year. Surgical dissection revealed that the precentral gyrus was displaced inferiorly by the @entity5 , and a clear subarachnoid plane separated both structures. Functional areas were not identified within the exophytic component. @entity51 were not observed. CONCLUSIONS: The growth rate in low-grade @entity11 has been estimated between 4 and 6 mm per year. The @entity5 described here had a growth rate of 0.5 mm per year, far below this average. Preoperative identification of this exophytic growth pattern is of major significance for surgical planning. The @entity5 is amenable for a safe and complete resection as it is covered by the arachnoid and pial membranes of the cistern and the surrounding brain.

[A very slow-growing exophytic hemisphere XXXX : a case report].

@entity410 :: ('MESH:D012640', 'Disease') :: ['seizures'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'exophytic tumor'] @entity11 :: ('MESH:D005910', 'Disease') :: ['Gliomas', 'hemispheric glioma', 'gliomas'] @entity51 :: ('MESH:D009461', 'Disease') :: ['Postoperative neurological deficits'] @entity3271 :: ('MESH:D009837', 'Disease') :: ['oligodendroglioma']
@entity11 :: (MESH:D005910,Disease) :: ['glioma']
