EURORAD ESR

Case 2159

Papillary endolymphatic sac tumour

Author(s)
Viskovic K, Rumboldt Z
 
Patient
female, 33 year(s)
 
 
  • Figure 1
    Axial T1-weighted images
     

    A lobulated mass of approximately 5 cm in diameter emerging from the left temporal bone, and extending into the ponto-cerebellar angle. The lesion is of a mixed signal intensity, with a high signal in its peripheral...

     
    Area of Interest: unknown; Imaging Technique: Axial T1-weighted images;

    Image inferior to Fig. 1a - the mass of a predominantly high signal intensity is again seen clearly. A probable hemangioblastoma is also found in the right cerebellar hemisphere.

     
    Area of Interest: unknown; Imaging Technique: Axial T1-weighted images;
     
     
  • Figure 2
    An axial T2-weighted image

    The lobulated lesion is of a mixed signal intensity, with a high signal in its outer aspect. A probable fluid-fluid level is seen in its posterior portion, probably corresponding to layering of blood products...

     
    Area of Interest: unknown; Imaging Technique: Axial T2-weighted image;
     
     
  • Figure 3
    Contrast-enhanced T1-weighted images
     

    A slice section at a level similar to that of Fig. 1a. The lesion shows a dense contrast enhancement, predominantly in its central portion.

     
    Area of Interest: unknown; Imaging Technique: Contrast-enhanced T1-weighted images;

    A slice section from the top of the mass (arrow). Two additional small enhancing lesions are seen within the cerebellar parenchyma (arrowheads), most likely corresponding to haemangioblastomas. The one in the right...

     
    Area of Interest: unknown; Imaging Technique: Contrast-enhanced T1-weighted images;
     
     
A lobulated mass of approximately 5 cm in diameter emerging from the left temporal bone, and extending into the ponto-cerebellar angle. The lesion is of a mixed signal intensity, with a high signal in its peripheral portion. Internal linear structures of a very low signal intensity may correspond to vascular flow-voids. A probable hemangioblastoma is noted in the right cerebellar hemisphere.
 
Image inferior to Fig. 1a - the mass of a predominantly high signal intensity is again seen clearly. A probable hemangioblastoma is also found in the right cerebellar hemisphere.
 
The lobulated lesion is of a mixed signal intensity, with a high signal in its outer aspect. A probable fluid-fluid level is seen in its posterior portion, probably corresponding to layering of blood products (arrowhead).
 
A slice section at a level similar to that of Fig. 1a. The lesion shows a dense contrast enhancement, predominantly in its central portion.
 
A slice section from the top of the mass (arrow). Two additional small enhancing lesions are seen within the cerebellar parenchyma (arrowheads), most likely corresponding to haemangioblastomas. The one in the right hemisphere appears to be associated with a cyst.
 
 
 
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