Developmental venous anomaly with calcification of basal ganglia

Case contributed by A.Prof Frank Gaillard



Patient Data

Age: 70 years
Gender: Male

Non-contrast study demonstrates calcification in the globus pallidus and posterior thalamus. The differential of thalamic haemorrhage was given, even though A) it appears like calcification and B) there is no oedema surrounding the calcification which would be expected even if acute. 

Calcification of the right thalamus and globus pallidus is associated with a branching draining vein (into the basal vein of Rosenthal at the level of the right superior colliculus) in keeping with a development venous anomaly. This is difficult to appreciate on DSA (not shown), which excludes a shunting AVM/dAVF. Prominent chronic small vessel ischaemic change noted. No focal mass or collection.

Conclusion: The CT and MRI abnormalities represent asymmetric mineralisation/calcification. There is a known associated with a developmental venous anomaly. 

Case Discussion

In this case, the absence of any oedema surrounding the thalamic hyperdensity is a clue that there is nothing acute going on. 

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Case information

rID: 57889
Published: 25th Jan 2018
Last edited: 21st Feb 2018
Inclusion in quiz mode: Included

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