The Clinical Characteristics and Treatment of Cerebral Microarteriovenous Malformation Presenting with Intracerebral Hemorrhage: A Series of 13 Cases

Figure 2

Different imaging findings of a micro-AVMs case before and after the hematoma absorption. (a) Enhanced thin layer CT scanning showed no obvious nidus on the day of the onset. (b) Enhanced thin layer CT scanning showed hematoma absorption and a tiny nidus of dense vessels was found after conservative treatment (arrow indicated). (c) Abnormal feeding artery without any nidus and venous drainage was found during initial CTA on the day of the onset. (d) Abnormal feeding artery without any nidus and venous drainage was found by DSA on the second day since onset. (e) Micro-AVMs, composed of feeding artery, nidus, and venous drainage, were clearly visible by means of DSA 8 months after conservative treatment (arrow indicated).

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