| Popis: |
Background: Pure arterial malformations (PAMs) are rare intracranial vascular anomalies and involvement of the distal M3 segment of the middle cerebral artery are also uncommon. Diagnosis can become elusive when PAMs occur in atypical locations due to insufficient knowledge of the disease in spite of specific imaging characteristics. PAMs actually have a benign natural history and should be managed conservatively. We present a patient with a PAM of the left middle cerebral artery that was mistaken for an arteriovenous malformation and embolized.Case presentation: We report a case of pure arterial malformation of the left middle cerebral artery in a 41-year-old man with a two-day history of dizziness and limb convulsions. Preoperative MRI and DSA displayed the left middle cerebral artery was dilated, overlapping, and tortuous arteries forming a mass of arterial loops with a coil-like appearance. He was mistaken for an arteriovenous malformation and embolized.Conclusion: Our case highlights that intracranial vascular anomalies forming a mass of arterial loops lacking a venous component should be considered pure arterial malformations. Management and individual therapy are administrated to patient who are screened out PAMs. |
