[Magnetic resonance imaging and PET/CT with 11C-methionine for primary central nervous system vasculitis].

Unlabelled: Primary central nervous system vasculitis is still a challenge due to rarity of disease, unspecific clinical and neurological presentation, as well as low specificity of MRI and laboratory tests.

Objective: To present the potential of hybrid neuroimaging in diagnosis of primary central nervous system vasculitis.

Material And Methods: The results of MRI, PET/CT with 11C-methionine, histological and immunochemical data in a 23-year-old patient with first-time epileptic seizure are demonstrated.

[PET/CT with 11C-methionine as a predictor of disease-free survival in patients with IDH1 wild type diffuse glioma].

Unlabelled: Prognosis of () wild-type gliomas is worse compared to -mutant tumors regardless of histological criteria for glioblastoma. However, there is still uncertainty regarding favorable course of disease and predictors of long-term survival in gliomas.

Objective: To study the metabolic characteristics of diffuse astrocytomas using C-methionine PET/CT and prognostic significance of PET-associated parameters for disease-free survival.

Persistent Nontumoral High-Amino-Acid Uptake on Brain [11C]Methionine PET/CT in a Patient After Combined Glioma Treatment.

A 44-year-old man after combined left temporal low-grade glioma treatment presented with daily multiple series of seizures. MRI demonstrated diffuse cortical swelling in the left frontal lobe with intensive gyral enhancement. PET with [11C]methionine (PET-MET) revealed increased radiotracer uptake strictly confined to the cortical ribbon of the left cerebral hemisphere, which persisted for 3 months.