EURORAD ESR

Case 16224

Special liposarcoma

Author(s)
Inês Abreu, Luís Amaral Ferreira, Nuno Pereira da Silva, Ângela Moreira, Cristina Marques

Centro Hospitalar e Universitário de Coimbra, Radiology Department; Portugal
 
Patient
female, 60 year(s)
 
 
  • Figure 1
    MRI study
     

    Transversal T1WI shows high-signal-intensity foci of fat within a predominantly low-signal-intensity mass.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    T1 with fat suppression imaging shows suppression of the signal in the foci that showed high signal on T1WI, representing fat within the lesion.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Sagittal T2FS shows a hyperintense mass with some hypointense bands. There is exuberant soft tissue edema surrounding the lesion.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    T1 with fat suppression after gadolinium injection shows heterogeneous enhancement with a cotton-like appearance.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 2
    Histopathological analysis

    Photomicrograph (H&E 100x) shows on the upper left the high-water content myxoid component and on the lower right the prominent cellular region with round cells, and disperse lipoblasts (arrow).

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: Percutaneous; Procedure: Biopsy; Special Focus: Neoplasia;
     
     
  • Figure 3
    Bone recurrence

    Bone recurrence of a myxoid liposarcoma of the left leg, showing a bone lesion within the left iliac bone (arrowhead) with low signal on T1 (left) and markedly hyperintense on T2FS (right).

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
Transversal T1WI shows high-signal-intensity foci of fat within a predominantly low-signal-intensity mass.
 
T1 with fat suppression imaging shows suppression of the signal in the foci that showed high signal on T1WI, representing fat within the lesion.
 
Sagittal T2FS shows a hyperintense mass with some hypointense bands. There is exuberant soft tissue edema surrounding the lesion.
 
T1 with fat suppression after gadolinium injection shows heterogeneous enhancement with a cotton-like appearance.
 
Photomicrograph (H&E 100x) shows on the upper left the high-water content myxoid component and on the lower right the prominent cellular region with round cells, and disperse lipoblasts (arrow).
 
Bone recurrence of a myxoid liposarcoma of the left leg, showing a bone lesion within the left iliac bone (arrowhead) with low signal on T1 (left) and markedly hyperintense on T2FS (right).
 
 
 
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