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Involvement of the skull base and vault in chronic idiopathic hyperphosphatasia

L Mazzanti1, P Ambrosetto, R Libri

  • 11st Paediatric Clinic, University of Bologna, Bologna, Italy.

Pediatric Radiology
|January 9, 1999
PubMed

Insights

Chronic idiopathic hyperphosphatasia (CIH), a rare skeletal dysplasia, can cause severe skull base and vault abnormalities in children. This case highlights CIH

Area of Science:

  • Pediatric Radiology
  • Skeletal Dysplasias
  • Neuroimaging

Background:

  • Chronic idiopathic hyperphosphatasia (CIH) is a rare generalized skeletal dysplasia affecting children.
  • Understanding CIH's impact on cranial development is crucial for early diagnosis and management.

Observation:

  • A 5-year-old girl with severe infantile CIH presented with clinical, radiographic, and cerebral MR findings.
  • Despite cranial enlargement, significant intracranial space reduction and brain compression were observed.

Findings:

  • Cerebral MR revealed a Chiari I malformation and marked reduction of the skull base and vault.
  • Normal dural venous sinus flow, absence of hydrocephalus, and no cranial nerve involvement were noted.

Implications:

  • This case confirms that CIH significantly affects the skull base and vault in pediatric patients.
  • Cranial MR imaging is essential for diagnosing and characterizing CIH-related skeletal abnormalities.
  • Further research into CIH's neurodevelopmental impact is warranted.

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