EURORAD ESR

Case 8609

Neuroepithelial cyst

Author(s)
Giannakopoulou L, Gialamoudi M, Repanas G, Kamtsiki S, Anastasiadou K, Palladas P

CT and MRI department, General Hospital ''G. Papanikolaou'', Thessaloniki, Greece.
 
Patient
female, 52 year(s)
 
 
  • Figure 1
    Axial non-enhanced brain CT
     

    Axial non-enhanced CT examination. A hypodense lesion appears at the right cerebral peduncle.

     

    The lesion extends up to the right thalamic region. There is no evidence of mass effect.

     
     
     
  • Figure 2
    Axial non-enhanced T1WI
     

    Axial non-enhanced T1WI, showing a lesion with homogeneousely low signal intensity in the right cerebral peduncle.

     

    The lesion extends to the right thalamic region and is well circumscribed.

     
     
     
  • Figure 3
    Axial T2WI
     

    The lesion shows homogeneousely high signal intensity in T2WI.

     

    Axial T2WI at the level of the third ventricle. The lesion extends to the right thalamic region and appears with homogeneousely high signal intensity.

     
     
     
  • Figure 4
    Axial FLAIR images
     

    The lesion presents with low signal intensity on FLAIR images, similar to that of CSF.

     

    The signal intensity of the lesion follows the signal intensity of CSF.

     
     
     
  • Figure 5
    Diffusion Weighted Images and corresponding ADC maps
     

    On DWI, the lesion shows low signal intensity, a finding that is compatible with no restriction of diffusion.

     

    DWI at a higher level. The lesion shows low signal intensity.

     

    On corresponding ADC map, the lesion presents with high signal intensity.

     

    Corresponding ADC map at the level of the third ventricle. The lesion appears with high signal intensity.

     
     
     
  • Figure 6
    Contrast-enhanced T1WI
     

    Axial contrast-enhanced T1WI. The lesion shows no enhancement.

     

    Axial contrast-enhanced T1WI at the level of the third ventricle. The lesion shows no enhancement.

     

    Coronal contrast-enhanced T1WI.

     

    Saggital contrast-enhanced T1WI.

     
     
     
Axial non-enhanced CT examination. A hypodense lesion appears at the right cerebral peduncle.
 
The lesion extends up to the right thalamic region. There is no evidence of mass effect.
 
Axial non-enhanced T1WI, showing a lesion with homogeneousely low signal intensity in the right cerebral peduncle.
 
The lesion extends to the right thalamic region and is well circumscribed.
 
The lesion shows homogeneousely high signal intensity in T2WI.
 
Axial T2WI at the level of the third ventricle. The lesion extends to the right thalamic region and appears with homogeneousely high signal intensity.
 
The lesion presents with low signal intensity on FLAIR images, similar to that of CSF.
 
The signal intensity of the lesion follows the signal intensity of CSF.
 
On DWI, the lesion shows low signal intensity, a finding that is compatible with no restriction of diffusion.
 
DWI at a higher level. The lesion shows low signal intensity.
 
On corresponding ADC map, the lesion presents with high signal intensity.
 
Corresponding ADC map at the level of the third ventricle. The lesion appears with high signal intensity.
 
Axial contrast-enhanced T1WI. The lesion shows no enhancement.
 
Axial contrast-enhanced T1WI at the level of the third ventricle. The lesion shows no enhancement.
 
Coronal contrast-enhanced T1WI.
 
Saggital contrast-enhanced T1WI.
 
 
 
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