Brain capillary telangiectasias are small, benign, asymptomatic, angiographically occult lesions that are incidentally discovered either at autopsy or on MR imaging in most cases. They are commonly located in the pons and can be associated with other vascular malformations. We describe a case of an unusually large capillary telangiectasia associated with a developmental venous anomaly involving the basal ganglia in a young woman, in which MR serial imaging suggested the diagnosis and avoided an unnecessary stereotaxic biopsy.
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