Developmental venous anomaly
Intermittent headache for about one year.
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Left parietal linear abnormal signal appears isointense in T1WIs and hyperintense in T2 as well as FLAIR with ehnancemnet in post contrast series. It has a typical 'palm tree' shape typical of a venous angioma aka developmental venous anomaly (DVA).
Developmental venous anomalies are common and are in the vast majority of cases completely asymptomatic. As such they should not be confused with a symptomatic abnormality and care should be taken in the report to ensure this is communicated to the clinician who may not be familiar with the entity.