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Radiology News


Meningioma-Teaching Points

ü  Dural tail”- curvilinear area of enhancement tapering off from margin of tumour along dural surface. Hyperostosis of adjacent bone. CT – calcification
ü  Light-bulb” enhancement post contrast;
ü  MR Spectroscopy shows – alanine
ü  DSA – “mother-in-law” sign (contrast shows up early and stays late)
ü  ECA supply commonest, “spoke-wheel” vascularity.
ü  Extra-axial tumour
ü  Associations with Neurofibromatosis type II; basal cell naevus syndrome.
Meningioma-Teaching Points Reviewed by Sumer Sethi on Sunday, April 14, 2013 Rating: 5

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