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<p>Chiari I malformation is often seen in children and may be asymptomatic. Acute neurological injury following trauma in children with Chiari I malformation has been reported in literature. Traumatic contusion involving the cerebellar tonsils is rarely described in children and usually occurs in patients with Chiari I malformation/cerebellar tonsillar ectopia. It is unknown if activity restriction should be advised in children with asymptomatic Chiari I malformation given the potential for this injury. We describe a case of cerebellar tonsillar contusion in a child with concomitant skull vault fracture and review the literature for similar cases. We also propose a plausible mechanism to explain tonsillar contusion in patients with Chiari I malformation.</p>

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Cerebellar tonsillar contusion in traumatic brain injury: an atypical presentation of previously undiagnosed Chiari I malformation

  • 期刊论文

  • 发表日期：

    2025年3月19日

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  • Debajyoti Datta,
  • David McAuley,
  • Albert Tu

摘要

Chiari I malformation is often seen in children and may be asymptomatic. Acute neurological injury following trauma in children with Chiari I malformation has been reported in literature. Traumatic contusion involving the cerebellar tonsils is rarely described in children and usually occurs in patients with Chiari I malformation/cerebellar tonsillar ectopia. It is unknown if activity restriction should be advised in children with asymptomatic Chiari I malformation given the potential for this injury. We describe a case of cerebellar tonsillar contusion in a child with concomitant skull vault fracture and review the literature for similar cases. We also propose a plausible mechanism to explain tonsillar contusion in patients with Chiari I malformation.