EURORAD ESR

Case 3274

A giant ancient schwannoma of the pelvis: US, CT and MRI findings

Author(s)
Navalho M, Abecassis M, Távora I
 
Patient
female, 58 year(s)
 
 
  • Figure 1
    An ultrasonographic examination
     

    A transverse ultrasound image of the pelvis showing the displacement of the uterus to the right by a heterogeneous mass with hyperechoic foci.

     
    Area of Interest: unknown; Imaging Technique: Ultrasonographic examination;

    A longitudinal ultrasound image showing the existence of at least one hypoechoic portion, suggesting cystic changes.

     
    Area of Interest: unknown; Imaging Technique: Ultrasonographic examination;
     
     
  • Figure 2
    A nonenhanced multislice CT
     

    A large pelvic mass, with low attenuation areas and calcified foci, is seen.

     
    Area of Interest: unknown; Imaging Technique: Nonenhanced multislice CT;

    A well-demarcated mass displacing the uterus to the right is seen.

     
    Area of Interest: unknown; Imaging Technique: Nonenhanced multislice CT;

    A coronal reconstruction is seen. The mass appears to be slightly compressed, displacing the common and external iliac vessels.

     
    Area of Interest: unknown; Imaging Technique: Nonenhanced multislice CT;

    Volume rendering technique, after the introduction of contrast through the nephrostomies. The right collecting system is dilated. An adequate administration of contrast on the left side was impossible because the...

     
    Area of Interest: unknown; Imaging Technique: Nonenhanced multislice CT;
     
     
  • Figure 3
    MRI findings
     

    A T1-weighted image is seen, in which the tumor shows an inhomogeneous low signal intensity.

     
    Area of Interest: unknown; Imaging Technique: MRI findings;

    A sagittal T2-weighted image demonstrating areas of high signal intensity. The uterus is compressed and displaced anteriorly.

     
    Area of Interest: unknown; Imaging Technique: MRI findings;

    A T1-weighted image after the intravenous injection of gadolinium. The tumor enhances leaving areas of internal low signal consistent with cystic degeneration and necrosis.

     
    Area of Interest: unknown; Imaging Technique: MRI findings;

    A coronal T1-weighted image after the intravenous injection of gadolinium. The iliac vessels are displaced but, apparently, not invaded.

     
    Area of Interest: unknown; Imaging Technique: MRI findings;
     
     
A transverse ultrasound image of the pelvis showing the displacement of the uterus to the right by a heterogeneous mass with hyperechoic foci.
 
A longitudinal ultrasound image showing the existence of at least one hypoechoic portion, suggesting cystic changes.
 
A large pelvic mass, with low attenuation areas and calcified foci, is seen.
 
A well-demarcated mass displacing the uterus to the right is seen.
 
A coronal reconstruction is seen. The mass appears to be slightly compressed, displacing the common and external iliac vessels.
 
Volume rendering technique, after the introduction of contrast through the nephrostomies. The right collecting system is dilated. An adequate administration of contrast on the left side was impossible because the nephrostomie was not functioning properly.
 
A T1-weighted image is seen, in which the tumor shows an inhomogeneous low signal intensity.
 
A sagittal T2-weighted image demonstrating areas of high signal intensity. The uterus is compressed and displaced anteriorly.
 
A T1-weighted image after the intravenous injection of gadolinium. The tumor enhances leaving areas of internal low signal consistent with cystic degeneration and necrosis.
 
A coronal T1-weighted image after the intravenous injection of gadolinium. The iliac vessels are displaced but, apparently, not invaded.
 
 
 
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