Ependymoma-MRI




Intracranial ependymomas are typically isodense on unenhanced CT scans with minimal to moderate enhancement upon contrast administration. Calcification can be noted on unenhanced CT scans in approximately one half of cases. Cyst formation is common in these tumors, and foraminal spread can be observed in posterior fossa lesions through the foramina of Luschka and Magendie. On precontrast and postcontrast MRI, tumors often appear heterogeneous secondary to necrosis, hemorrhage, and calcification. Variable signal intensity is noted on T1- and T2-weighted images although intracranial ependymomas are usually hypointense to isointense on T1-weighted images and hyperintense compared with gray matter, on T2-weighted images.
Dr.Sumer K Sethi, MD
Sr Consultant Radiologist ,VIMHANS and CEO-Teleradiology Providers
Editor-in-chief, The Internet Journal of Radiology
Director, DAMS (Delhi Academy of Medical Sciences)
Dr.Sumer K Sethi, MD
Sr Consultant Radiologist ,VIMHANS and CEO-Teleradiology Providers
Editor-in-chief, The Internet Journal of Radiology
Director, DAMS (Delhi Academy of Medical Sciences)
Ependymoma-MRI
Reviewed by Sumer Sethi
on
Monday, January 12, 2009
Rating:

1 comment:
wow gold
wow power leveling
cheap wow gold
wow powerleveling
buy wow gold
wow power level
World of Warcraft Gold
wow powerlevel
wow gold cheap
power leveling
wow gold buy
powerleveling
gold wow
powerleveling wow
wowgold
wowleveling
world of warcraft Powerlevel
world of warcraft Power level
cheap world of warcraft Powerleveling
cheap world of warcraft Power leveling
buy world of warcraft Powerleveling
buy world of warcraft Power leveling
buy wow power leveling
buy wow powerleveling
Post a Comment