Presentation
Chronic headaches.
Patient Data
Age: 25 years
Gender: Female
From the case:
Developmental venous anomaly (DVA)
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Small right cerebellar curvilinear venous structures converging into a larger collecting vein giving the characteristic caput medusae sign, and draining into the superior petrosal sinus in keeping with a developmental venous anomaly.
Case Discussion
MRI features of a developmental venous anomaly (incidental finding) with no associated cavernous malformation which may be seen in ~20% of cases.