Medulloblastoma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]

Overview

Brain MRI with gadolinium based contrast is the investigation of choice for the diagnosis of medulloblastoma. On a T1 weighted brain MRI image, medulloblastoma is characterized by a hypointense mass located at the posterior cerebral fossa that may demonstrate calcification and necrosis.[1]

MRI

  • Brain MRI with gadolinium based contrast is the investigation of choice for the diagnosis of medulloblastoma.[1]
  • On brain MRI, medulloblastoma is characterized by a mass located at the posterior cerebral fossa.
  • MRI image characteristics observed among medulloblastoma patients include:
  • T1 weighted image demonstrates:
  • Hypointense mass
  • T1 weighted image with gadolinium contrast demonstrates:
  • Heterogeneous enhancement in 90% of the cases
  • T2 weighted image demonstrates:
  • FLAIR MRI image demonstrates:[2]
  • Localized areas of isointensity or hypointensity
  • Radiating star-shaped enhancement
  • Multiple nodular enhancing pattern


For magnetic resonance (MR) spectroscopy of medulloblastoma please click here.

Gallery

References

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 Medulloblastoma. Radiopaedia(2015) http://radiopaedia.org/articles/medulloblastoma Accessed on September, 30th 2015
  2. Liu HQ, Yin X, Li Y, Zhang J, Wang Y, Tchoyoson Lim CC; et al. (2012). "MRI features in children with desmoplastic medulloblastoma". J Clin Neurosci. 19 (2): 281–5. doi:10.1016/j.jocn.2011.04.029. PMID 22209398.

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