Presentation
Acute headache
Patient Data
The imaging reveals a heterogeneous lesion in the left parietotemporal region with a high T2 signal, surrounded by a peripheral low signal intensity rim, indicative of a hemosiderin rim, giving it a "popcorn" appearance. There are intrinsic high T1 signal foci within the lesion, which suggests areas of subacute hemorrhage.
Additionally, an adjacent developmental venous anomaly is observed medial to the lesion, best visualized on coronal views.
The patient underwent surgery due to the onset of an acute headache accompanied by hemorrhage.
Case Discussion
Cerebral cavernous venous malformations (CCVMs), also known as cavernomas, are a common type of cerebral vascular malformation characterized by their distinctive "popcorn" appearance on MRI. They often present with hemorrhage, leading to symptoms such as headaches or seizures, though many remain asymptomatic and are discovered incidentally.
In this case, the patient presented with an acute headache and hemorrhage, necessitating surgical intervention.
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