Germinoma MRI

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

Overview

Head and neck MRI scan is diagnostic of germinoma. On head and neck MRI, germinoma is characterized by isointense or slightly hyperintense to adjacent brain on T1 and T2 weighted MRI and vivad and homogenous enhancement on T1 contrast with gadolinium.

MRI

MRI demonstrates a soft tissue mass, typically ovoid or lobulated in contour, engulfing the calcified pineal gland with the following signal characteristic:

MRI component	Features
T1	isointense or slightly hyperintense to adjacent brain
T2	isointense or slightly hyperintense to adjacent brain may have areas of cyst formation may have areas of haemorrhage have a predilection to invade adjacent brain central calcification appears low signal
T1 contrast + gadolinium	vivid and homogenous

References

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