EURORAD ESR

Case 2761

Mature cystic teratoma of the ovary without fat in the cystic cavity

Author(s)
M. Simões*, T. M. Cunha**, A. Félix**
*Hospital de Dona Estefânia, Lisboa
**Instituto Português de Oncologia de Francisco Gentil – Lisboa
1099-023 Lisboa / Portugal
 
Patient
female, 58 year(s)
 
 
  • Figure 1
    A sonogram of the pelvis

    A transabdominal sonogram showing the presence of an inhomogeneously mixed right adnexal mass.

     
     
     
  • Figure 2
    An unenhanced CT scan

    A CT image showing the presence of a heterogeneous right adnexal tumor with subtle calcifications and regular borders posterior to the uterus. A small amount of fat can be detected in the wall of the lesion (indicated...

     
     
     
  • Figure 3
    MRI of the pelvis
     

    On T1-weighted sequence the tumor is mostly markedly hypointense. A small high-signal intensity area is seen in the wall of the mass (indicated by an arrow).

     

    The feature in this image corresponds to pure fat content, as it is completely suppressed on a fat-suppressed sequence (T1WI).

     

    An axial T2-weighted image showing a heterogeneous high-signal intensity on the right adnexal tumor posterior to the uterus.

     
     
     
  • Figure 4
    Gross specimen
     

    A photograph of the right adnexal specimen, showing that the ovary is fully occupied by a unilocular cyst lined by skin containing mostly sebaceous material and hair without fatty tissue.

     

    A photograph of the right adnexal specimen taken after the removal of the internal content of the cyst.

     
     
     
  • Figure 5
    Histology

    Tumor wall, lined by queratinized squamous cell epithelium, with fat tissue sorrounding adnexal glands.

     
     
     
A transabdominal sonogram showing the presence of an inhomogeneously mixed right adnexal mass.
 
A CT image showing the presence of a heterogeneous right adnexal tumor with subtle calcifications and regular borders posterior to the uterus. A small amount of fat can be detected in the wall of the lesion (indicated by an arrow).
 
On T1-weighted sequence the tumor is mostly markedly hypointense. A small high-signal intensity area is seen in the wall of the mass (indicated by an arrow).
 
The feature in this image corresponds to pure fat content, as it is completely suppressed on a fat-suppressed sequence (T1WI).
 
An axial T2-weighted image showing a heterogeneous high-signal intensity on the right adnexal tumor posterior to the uterus.
 
A photograph of the right adnexal specimen, showing that the ovary is fully occupied by a unilocular cyst lined by skin containing mostly sebaceous material and hair without fatty tissue.
 
A photograph of the right adnexal specimen taken after the removal of the internal content of the cyst.
 
Tumor wall, lined by queratinized squamous cell epithelium, with fat tissue sorrounding adnexal glands.
 
 
 
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