Rare cause of bilateral basal ganglia calcifications: hemispheric AVM

Background: Intracranial calcifications may occur physiologically or pathologically for many reasons. In arteriovenous malformations (AVMs), calcification is not uncommon and is usually detected in the lesion vessel walls and surrounding parenchyma. However, rarely calcifications can also be seen in bilateral basal ganglia and especially in watershed areas, which are far from the lesion. Case presentation: In this article, we present a 47-year-old case of hemispheric AVM accompanied by bilateral basal ganglia calcification. Conclusions: Since the direct diagnosis of AVM in non-contrast brain-computed tomography (CT) is difficult, the detection of calcification in these regions requires the presence of AVM in the differential diagnosis.