EURORAD ESR

Case 15390

Hemorrhagic colloid cyst with sudden clinical deterioration: emergency CT and MRI findings.

Author(s)
Irini Nikolaou, Vasileios Rafailidis, Andjoli Davidhi, Konstantinos Kouskouras, Ioannis Chryssogonidis, Anna Kalogera-Fountzila

Radiology Department, AHEPA University General Hospital of Thessaloniki, Greece. Email:billraf@hotmail.com
 
Patient
female, 65 year(s)
 
 
  • Figure 1
    Emergency brain CT findings
     

    Contrast-enhanced axial CT image showing dilatation of the lateral ventricles but normal sulci; findings in keeping with non-communicating hydrocephalus.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;

    Contrast-enhanced axial CT image showing a hyperdense smooth round mass located at the region of the foramen of Monro, at the anterior part of the third ventricle.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;

    Contrast-enhanced axial CT image showing a hyperdense smooth round mass located at the region of the foramen of Monro, at the anterior part of the third ventricle.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;
     
     
  • Figure 2
    Brain MRI findings
     

    Axial FLAIR image showing the mass with central low signal-intensity and peripheral hyperintensity. There is dilatation of the occipital horns of the lateral ventricles with transependymal flow of cerebrospinal fluid.

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

    Coronal T2-weighted image showing the hydrocephalus caused by the mass which shows low-signal intensity and is situated at the foramen of Monro.

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

    Axial T1-weighted image prior to the administration of contrast agent showing the mass with high signal intensity.

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

    Axial T1-weighted image after the administration of contrast material shows no significant enhancement of the mass.

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

    Coronal T1-weighted image after the administration of contrast material shows only mild peripheral enhancement of the mass.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Acute;
     
     
  • Figure 3
    Post-operative CT findings
     

    Axial CT image showing the presence of catheter within the ventricular system along with air at the frontal horn of the right lateral ventricle and the subdural space frontally.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;

    Axial CT image showing the presence of catheter along with air at the subdural space frontally.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;

    Axial CT image showing the removal of the mass.

     
    Area of Interest: Neuroradiology brain; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Acute;
     
     
Contrast-enhanced axial CT image showing dilatation of the lateral ventricles but normal sulci; findings in keeping with non-communicating hydrocephalus.
 
Contrast-enhanced axial CT image showing a hyperdense smooth round mass located at the region of the foramen of Monro, at the anterior part of the third ventricle.
 
Contrast-enhanced axial CT image showing a hyperdense smooth round mass located at the region of the foramen of Monro, at the anterior part of the third ventricle.
 
Axial FLAIR image showing the mass with central low signal-intensity and peripheral hyperintensity. There is dilatation of the occipital horns of the lateral ventricles with transependymal flow of cerebrospinal fluid.
 
Coronal T2-weighted image showing the hydrocephalus caused by the mass which shows low-signal intensity and is situated at the foramen of Monro.
 
Axial T1-weighted image prior to the administration of contrast agent showing the mass with high signal intensity.
 
Axial T1-weighted image after the administration of contrast material shows no significant enhancement of the mass.
 
Coronal T1-weighted image after the administration of contrast material shows only mild peripheral enhancement of the mass.
 
Axial CT image showing the presence of catheter within the ventricular system along with air at the frontal horn of the right lateral ventricle and the subdural space frontally.
 
Axial CT image showing the presence of catheter along with air at the subdural space frontally.
 
Axial CT image showing the removal of the mass.
 
 
 
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