EURORAD ESR

Case 10834

Giant parietal foramina

Author(s)
B. Arys, A.M. Fink

The Royal Children's Hospital,
Department of Medical Imaging,
50 Flemington Road,
3052 Parkville, Australia;
Email:boarys@gmail.com
 
Patient
female, 5 year(s)
 
 
  • Figure 1
    Skull X-ray at age 4 months
     

    Inclined AP X-ray of the skull. A large midline defect is seen at the posterior aspect of the parietal bones. A single parasagittal focus of ossification (arrow) is present within the centre of the defect.

     
    Area of Interest: Paediatric; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Congenital;

    Lateral X-ray of the skull demonstrating the parietal osseous defect.

     
    Area of Interest: Paediatric; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Congenital;
     
     
  • Figure 2
    MRI brain at age 16 months
     

    Coronal T1 MRI image. Bilateral parietal osseous defects are seen (between arrows). No herniation of brain parenchyma or meninges through the defect.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Congenital;

    Sagittal T2 MRI image. Hypoplasia of the straight sinus and anomalous venous drainage through a persistent falcine sinus are seen.

     
    Area of Interest: Paediatric; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Congenital;

    Sagittal T1 post Gd contrast MRI image. Hypoplasia of the straight sinus and anomalous venous drainage through a persistent falcine sinus are seen.

     
    Area of Interest: Head and neck; Neuroradiology brain; Paediatric; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Congenital;
     
     
  • Figure 3
    Skull X-ray at ages 3 years and 4 years
     

    AP skull X-ray at age 3 years. The large midline defect has now closed but the parietal foramina still remain present.

     
    Area of Interest: Bones; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Congenital;

    AP X-ray at age 4 years. Persistence of the bilateral parietal foramina.

     
    Area of Interest: Bones; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Congenital;

    Lateral X-ray at age 4 years. Persistence of the bilateral parietal foramina.

     
    Area of Interest: Bones; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Congenital;
     
     
  • Figure 4
    CT at age 5 years
     

    Coronal CT skull - bone window. No further closure of the foramina is seen compared to the previous studies.

     
    Area of Interest: Bones; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Congenital;

    Lateral CT skull - bone window

     
    Area of Interest: Bones; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Congenital;

    CT skull - 3D reformat - view from posterior

     
    Area of Interest: Bones; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Congenital;
     
     
Inclined AP X-ray of the skull. A large midline defect is seen at the posterior aspect of the parietal bones. A single parasagittal focus of ossification (arrow) is present within the centre of the defect.
 
Lateral X-ray of the skull demonstrating the parietal osseous defect.
 
Coronal T1 MRI image. Bilateral parietal osseous defects are seen (between arrows). No herniation of brain parenchyma or meninges through the defect.
 
Sagittal T2 MRI image. Hypoplasia of the straight sinus and anomalous venous drainage through a persistent falcine sinus are seen.
 
Sagittal T1 post Gd contrast MRI image. Hypoplasia of the straight sinus and anomalous venous drainage through a persistent falcine sinus are seen.
 
AP skull X-ray at age 3 years. The large midline defect has now closed but the parietal foramina still remain present.
 
AP X-ray at age 4 years. Persistence of the bilateral parietal foramina.
 
Lateral X-ray at age 4 years. Persistence of the bilateral parietal foramina.
 
Coronal CT skull - bone window. No further closure of the foramina is seen compared to the previous studies.
 
Lateral CT skull - bone window
 
CT skull - 3D reformat - view from posterior
 
 
 
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