EURORAD ESR

Case 1278

Mucinous adenocarcinoma of the urachus

Author(s)
J. O. Prior(1), L. Poncioni(1), P. Jichlinski(2), L. Guillou(3), P. Schnyder(1)
 
Patient
male, 43 year(s)
 
 
  • Figure 1
    Contrast-enhanced CT of the abdomen and pelvis
     

    Axial contrast-enhanced CT slice through the superior part of the mass which shows peripheral calcifications and low-attenuation content.

     
    Area of Interest: unknown; Imaging Technique: Contrast-enhanced CT of the abdomen and pelvis;

    Another axial slice through the lower part of mass which appears to be contiguous with the dome of the bladder.

     
    Area of Interest: unknown; Imaging Technique: Contrast-enhanced CT of the abdomen and pelvis;

    Sagittal reconstruction of the contrast-enhanced CT showing a cystic mass lying on top of the dome of the bladder. The mass presents peripheral calcifications and it is clearly excluded from the GI tract.

     
    Area of Interest: unknown; Imaging Technique: Contrast-enhanced CT of the abdomen and pelvis;
     
     
  • Figure 2
    Macroscopic view of the resected mass as viewed from the inside of the bladder

    Inside view from the dome of the bladder showing an exophytic and polypoid aspect of the bladder mucosa due to the underlying cystic mass.

     
    Area of Interest: unknown; Imaging Technique: Macroscopic view of the resected mass as viewed from the inside of the bladder;
     
     
  • Figure 3
    Photomicrographs of resected urachus and adjacent bladder (haematoxylin-eosin stain)
     

    Low-power photomicrograph (original magnification x20) showing a mucinous adenocarcinoma under normal urothelium. Note the small isolated focus of intestinal metaplasia of the urothelium (lower right part of the frame).

     
    Area of Interest: unknown; Imaging Technique: Photomicrographs of resected urachus and adjacent bladder (haematoxylin-eosin stain);

    High-power photomicrograph (original magnification x200) showing tumoral proliferation of carcinomatous glandular tubes. Goblet cells are easily seen among the tall columnar epithelium.

     
    Area of Interest: unknown; Imaging Technique: Photomicrographs of resected urachus and adjacent bladder (haematoxylin-eosin stain);

    Another high-power photomicrograph (original magnification x200) of this mucinous adenocarcinoma of the urachus.

     
    Area of Interest: unknown; Imaging Technique: Photomicrographs of resected urachus and adjacent bladder (haematoxylin-eosin stain);
     
     
Axial contrast-enhanced CT slice through the superior part of the mass which shows peripheral calcifications and low-attenuation content.
 
Another axial slice through the lower part of mass which appears to be contiguous with the dome of the bladder.
 
Sagittal reconstruction of the contrast-enhanced CT showing a cystic mass lying on top of the dome of the bladder. The mass presents peripheral calcifications and it is clearly excluded from the GI tract.
 
Inside view from the dome of the bladder showing an exophytic and polypoid aspect of the bladder mucosa due to the underlying cystic mass.
 
Low-power photomicrograph (original magnification x20) showing a mucinous adenocarcinoma under normal urothelium. Note the small isolated focus of intestinal metaplasia of the urothelium (lower right part of the frame).
 
High-power photomicrograph (original magnification x200) showing tumoral proliferation of carcinomatous glandular tubes. Goblet cells are easily seen among the tall columnar epithelium.
 
Another high-power photomicrograph (original magnification x200) of this mucinous adenocarcinoma of the urachus.
 
 
 
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