Presentation
Headache.
Patient Data
A linear hyperdensity is noted in the left anterior high frontal lobe.
The left anterior high frontal lobe shows tangle of blood vessels with a prominent transcortical draining vein and small collector medullary veins towards the frontal horn with characteristic "medusa head appearance"; typical of a developmental venous anomaly (DVA) or venous angioma.
No evidence of subarachnoid hemorrhage is noted. No otherwise evidence of acute intracranial bleeding, recent infarct, significant focal mass effect, or hydrocephalus is seen. The basal cisterns are patent.
The signal intensity of the cerebrum, the cerebellum, and of the brainstem is otherwise within normal limits. No mass lesion. The cerebral sulci and ventricles are normal in size for the patient's age. No abnormal extra-axial fluid collection is visible. Flow voids of the major intracranial vessels appear grossly preserved.
The paranasal sinuses and mastoid air cells are clear. No gross orbital mass. MR angiography of the brain confirms the left anterior frontal anterior frontal venous angioma or DVA.
Normal caliber and signal intensity of the cerebral arteries with no evidence of occlusions, stenosis or aneurysms. No otherwise evidence of vascular displacement or A-V malformation. Normal vertebro-basilar syste
Case Discussion
Left anterior frontal developmental venous anomaly (DVA) or venous angioma. No evidence of subarachnoid hemorrhage or vascular aneurysmal dilatation.
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