EURORAD ESR

Case 8899

Extravascular leiomyosarcoma: imaging and pathology findings of an unusual abdomino-pelvic mass

Author(s)
Pozzi Mucelli F¹, Medeot A¹, Ober E², Bussani R², Cova M¹.

1) Struttura Complessa di Radiologia, 2) Unità Clinica Operativa di Anatomia ed Istologia Patologica, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy.
 
Patient
male, 55 year(s)
 
 
  • Figure 1
    US examination, longitudinal scan

    Oval mass with inhomogeneous echogenicity in hypogastrium.

     
    Area of Interest: Abdomen; Imaging Technique: Ultrasound; Procedure: Diagnostic procedure;
     
     
  • Figure 2
    MDTC examination
     

    Axial view: large lesion located anteriorly to the aortic bifurcation, showing a mixed partly fluid, partly solid pattern with enhancement after iv c.m.

     
    Area of Interest: Abdomen; Imaging Technique: CT; Procedure: Diagnostic procedure;

    Coronal reconstruction shows the lesion relationship with bowel (arrow) and adjacent vessels.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: Image manipulation / Reconstruction; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Sagittal reconstruction defines the infiltration of surrounding soft tissue by the lesion.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: Image manipulation / Reconstruction; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 3
    Pathology findings
     

    Macroscopic features: encapsulated lesion with a necrotic core (red arrow) adjacent to ileal loop of bowel (black arrow).

     
    Area of Interest: Abdomen; Procedure: Intraoperative; Special Focus: Neoplasia;

    Microscopic findings: spindle-like cells proliferation with disarrayed architecture.

     
    Area of Interest: Musculoskeletal soft tissue; Procedure: Laboratory tests; Special Focus: Neoplasia;
     
     
Oval mass with inhomogeneous echogenicity in hypogastrium.
 
Axial view: large lesion located anteriorly to the aortic bifurcation, showing a mixed partly fluid, partly solid pattern with enhancement after iv c.m.
 
Coronal reconstruction shows the lesion relationship with bowel (arrow) and adjacent vessels.
 
Sagittal reconstruction defines the infiltration of surrounding soft tissue by the lesion.
 
Macroscopic features: encapsulated lesion with a necrotic core (red arrow) adjacent to ileal loop of bowel (black arrow).
 
Microscopic findings: spindle-like cells proliferation with disarrayed architecture.
 
 
 
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