• AiJun Peng, HuiYan Dai, LiangXue Zhou, and Yi Liu.
• Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.
• World Neurosurg. 2020 Oct 1; 142: 112-116.

BackgroundInfantile intracranial aneurysms (IAs) are extremely rare. IA clipping and embolization have been the most common treatment options. Infantile giant IAs treated by surgical resection and in situ anastomosis have rarely been reported.Case DescriptionA 43-day-old female infant was admitted to our hospital because of abnormal crying and vomiting. Multimodal images showed a right temporal hematoma and a giant dissecting IA. With comprehensive preoperative management, IA resection and in situ anastomosis were successfully performed. Furthermore, intraoperative and postoperative multimodal images demonstrated that the parent vessel was patent. Pathological examination showed chronic inflammation of this IA wall. The infant had a favorable outcome during the 3-month follow-up period.ConclusionsInfantile giant IAs are extremely rare. Chronic inflammation might be involved in the pathogenesis of infantile dissecting IAs. IA resection and in situ anastomosis could be a reasonable choice in the management of infantile giant IAs that cannot be completely clipped or embolized.Copyright © 2020 Elsevier Inc. All rights reserved.

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