A distal anterior cerebral artery aneurysm in infant: disappearance and reappearance of the aneurysm

Congenital Aneurysm Presenting as Peripheral Facial Paresis

“…The most frequent presentation is subarachnoid hemorrhage. Intracerebral hematoma, as in the present case, is unusual [1, 4, 5]. …”

“…Intracranial aneurysms are relatively infrequent in the pediatric population, with a reported prevalence ranging from 0.5 to 4.6% of total intracranial aneurysms in large series [1,2,3,4]. In children less than 1 year old, they are even less frequent, accounting for 18% of childhood aneurysms and approximately 1% of aneurysms at any age [5].…”

“…Posterior circulation aneurysms occur more frequently in children than in adults. Infants also seem to have a higher incidence of large/giant aneurysms and increased risk of aneurysms rupture [2,3,4,5]. Etiology is more likely to be traumatic or infectious.…”

“…They usually originate in the internal carotid artery bifurcation, posterior circulation and seldom in the territory of the distal middle cerebral artery distribution [1,2,3,4]. Infants often present with nonspecific symptoms: irritability, lethargy, vomiting, seizures and coma [5].…”

Subarachnoid Haemorrhage from a Large Cerebral Aneurysm Visible Only on Repeat Angiography

“…Thirty-three days after the Subarachnoid Haemorrhage from a Large Cerebral Aneurysm Visible only on Repeat Angiography accepted being vasospasm, clotting of the aneurysm at the time of bleeding and last but probably not least interpretative errors and image quality problems 1,2,[4][5][6][7] . Mass effect from haematomas has also been postulated as a possible cause 8 but it does not seem likely that a haematoma could compress an arterial aneurysm, since it would have to create a pressure superior to the arterial pressure.…”