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Updated: Apr 30, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Arachnoid cysts with subdural hematoma or intracystic hemorrhage in children
Zhiyong Liu1, Peng Xu, Qiang Li
1From the *Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province; †Department of Neurosurgery, People's Hospital of Guangxi Zhuang Autonomous Region, Nannin, Guangxi Zhuang Autonomous Region; and ‡Department of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People's Republic of China.
Insights
Pediatric arachnoid cysts (AC) can develop complications like subdural hematoma after head injury. Early follow-up and aggressive treatment, including cyst wall resection, are recommended for these complex cases.
Area of Science:
- Pediatric Neurosurgery
- Congenital Neurological Malformations
Background:
- Arachnoid cysts (AC) are common congenital intracranial lesions in children.
- Complications like subdural hematoma (SDH) and intracystic hemorrhage (ICH) can lead to intracranial hypertension, often after minor head trauma.
Observation:
- Delayed bleeding after trauma in AC patients is frequently overlooked.
- Treatment strategies for ACs complicated by SDH and ICH in pediatric patients remain controversial.
Findings:
- This review analyzes 3 pediatric cases and 41 previously reported cases over 20 years.
- Children with AC require regular follow-up post-head injury.
- Aggressive therapeutic approaches, including cyst wall resection and establishing cyst-cistern communication, are suggested for complicated ACs.
Implications:
- Highlights the need for vigilant monitoring of pediatric arachnoid cysts after head injury.
- Suggests a more aggressive surgical approach for complicated pediatric ACs compared to adults.
- Emphasizes the importance of cyst wall resection and cyst-cistern communication for effective management.
Abstract:
Arachnoid cyst (AC) is a common congenital intracranial lesion in children. It may be complicated by subdural hematoma (SDH) and intracystic hemorrhage (ICH) to cause intracranial hypertension after minor head injury or spontaneously. However, because most bleeding after trauma is delayed, it is often overlooked. At the same time, it remains controversial for treatment of ACs complicated with SDH and ICH. So far, it lacks review, especially for pediatric patients who have ACs with SDH or ICH. Here, we report 3 pediatric cases in our department from 2010 to 2011. At the same time, we review 41 pediatric patients reported in the last 20 years. We conclude that a child with AC should be regularly followed up after minor head injury, and that therapy for children with complicated ACs should be more aggressive than for adults. The cyst wall should be resected, and communication between cyst and cerebral cistern should be established.
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