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. 2015 Jul 31;9(7):1–9. doi: 10.3941/jrcr.v9i7.2413

Table 4.

Differential diagnosis for angiocentric glioma.

Entity CT findings MRI findings
Angiocentric glioma
  • Temporal lobe most common

  • Low/High density

  • No contrast enhancement

  • Calcification is uncommon

  • T1WI: heterogeneous based on the different composition, cortical hyper-intense “rim”

  • T2WI/FLAIR: hyper-intense signal, stalk- like extension to the cerebral ventricle

  • Solid or partial cystic (8.47%) lesion

  • Without/Weak contrast enhancement

Ganglioglioma
  • Temporal lobe most common

  • Predominantly cystic, well-circumscribed masses

  • Calcification is common

  • Fifty percent show contrast enhancement

  • T1WI: hypo-intense signal

  • T2WI: hyper-intense signal

  • Cystic and solid components

  • Homogeneous enhancement of solid portion

Pleomorphic xanthoastrocytoma
  • Temporal lobe most common

  • Hypo/isodense

  • Calcification is rare, one-third demonstrate hemorrhage

  • Intense contrast enhancement

  • T1WI: isointense with gray matter

  • T2WI: mildly hyper-intense signal, marked vasogenic edema

  • Relatively low ADC values

  • Cystic and solid components

  • Strong contrast enhancement with the mural nodule

Dysembryoplastic neuroepithelial tumor (DNET)
  • Temporal lobe most common

  • Low density

  • Calcification is rare

  • No contrast enhancement

  • T1WI: hypo-intense signal

  • T2WI: hyper-intense signal

  • Multicystic appearance

  • Adjacent cortical thickening

  • Without/Nodular contrast enhancement