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Right temporo-parietal developmental venous anomaly (DVA), case 2

This 34 year old female has been treated for bipolar maniac-depressive psychosis. She presented with vertigo and increasing gait disturbances, requiring evaluation by MRI in search for a posterior fossa lesion.

(Supratentorial DVA, 0.5T)
Fig.1 Transverse proton density and T2-weighted fast spin-echo images. These images appear to be unremarkable. More careful analysis reveals a somewhat deeper sulcus in the right temporo-parietal region with irregular hyperintense areas in its neighborhood.
Fig.2 Transverse Gadolinium-enhanced T1-weighted thin section images from a 3D acquisition disclose an unusually developed vein in the deep sulcus (lower images) and other dilated, apparently medullary veins (caput medusae) in the adjacent periventricular zone (upper images).
Fig.3 Transverse Gadolinium-enhanced source images from a Gadolinium-enhanced 3D TOF acquisition. Same observations as on Fig.2.
Fig.4 Transverse, sagittal and coronal targeted MIP reconstructions from the Gadolinium-enhanced 3D TOF acquisition. All typical components of the DVA are clearly visible.

 

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Fig. 1

Right temporo-parietal developmental venous anomaly (DVA), case 2, Fig. 1
Right temporo-parietal developmental venous anomaly (DVA), case 2, Fig. 2
Right temporo-parietal developmental venous anomaly (DVA), case 2, Fig. 3
Right temporo-parietal developmental venous anomaly (DVA), case 2, Fig. 4