EURORAD ESR

Case 15191

Extraskeletal osteosarcoma involving the mesentery and colon

Author(s)
Ramon Martin F. Banez, MD; Johanna Patricia A. Canal, MD, MHA

University of the Philippines-Philippine General Hospital, Taft Avenue, Ermita, Manila
Email:banezrm@yahoo.com
 
Patient
male, 67 year(s)
 
 
  • Figure 1
    Abdominal CT

    Axial CT image of the abdomen shows a thick-walled, heterogeneous density with mixed solid and fluid attenuation in the left renal fossa (arrow). Curvilinear calcifications are noted within (arrowheads).

     
    Area of Interest: Abdomen; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 2
    Bone scintigraphy

    Bone scintigraphy shows only degenerative changes in the shoulders, sacroiliac joints, knees, and feet. No other bone lesion is seen.

     
    Area of Interest: Bones; Imaging Technique: Nuclear medicine conventional; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 3
    Surveillance abdominal CT

    Axial CT images of the abdomen taken 5 months post-operatively show a homogenous, slightly enhancing, round focus adjacent to the left psoas muscle (arrow), with its inferior portion (arrowhead) inseparable from the...

     
    Area of Interest: Abdomen; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 4
    Post-chemoradiation CT

    Axial CT images of the abdomen taken 5 months after chemoradiation show increase in the size of the previously noted mass (arrow). There is also fusiform extension (arrowhead) in the left retroperitoneal region.

     
    Area of Interest: Abdomen; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
Axial CT image of the abdomen shows a thick-walled, heterogeneous density with mixed solid and fluid attenuation in the left renal fossa (arrow). Curvilinear calcifications are noted within (arrowheads).
 
Bone scintigraphy shows only degenerative changes in the shoulders, sacroiliac joints, knees, and feet. No other bone lesion is seen.
 
Axial CT images of the abdomen taken 5 months post-operatively show a homogenous, slightly enhancing, round focus adjacent to the left psoas muscle (arrow), with its inferior portion (arrowhead) inseparable from the said muscle.
 
Axial CT images of the abdomen taken 5 months after chemoradiation show increase in the size of the previously noted mass (arrow). There is also fusiform extension (arrowhead) in the left retroperitoneal region.
 
 
 
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