EURORAD ESR

Case 9075

A 23-year-old female patient with pain and a mass in the buttock (ECR 2006 Case of the Day)

Author(s)
Ros Mendoza LH (1), Crespo Rodríguez AM (1), Mayayo Sinués E(1), Azúa Romeo J (2), Angel Marín M(1).
Servicio de Radiodiagnóstico (1), Servicio de Anatomía Patológica (2), Hospital Universitario Miguel Servet, Paseo Isabel la Católica 1-3, 50009 Zaragoza, SPAIN
 
Patient
female, 23 year(s)
 
 
  • Figure 1
    Fig. 1

    Figure 1. US: Heterogeneous mass in the buttock with tubular structures corresponding to large blood vessels.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: Ultrasound;
     
     
  • Figure 2
    Fig. 2 a

    Figure 2. MRI of the pelvis. 2a. Sagittal T1-weighted image: Heterogenous mass in the buttock.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: MR;
     
     
  • Figure 3
    Fig 2 b

    Figure 2. MRI of the pelvis. 2b. The lesion in coronal T1-weighted image without gadolinium showed a sligthly more intense signal than the surrounding muscles.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: MR;
     
     
  • Figure 4
    Fig. 2 c

    Figure 2. MRI of the pelvis. 2c. The mass presented high, heterogeneous signal intensity in STIR-weighted images. Tubular void flows within and around the mass are identified.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: MR;
     
     
  • Figure 5
    Fig. 2 e

    Figure 2. MRI of the pelvis. 2e. In coronal T1-weighted image with gadolinium the lesion enhanced, predominantely in the periphery.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: MR;
     
     
  • Figure 6
    Fig. 3

    Figure 3. CT of the lesion: Heterogenous, peripheral enhancing mass after intravenous contrast administration. No bone erosion was found.

     
    Area of Interest: Soft tissues / Skin; Imaging Technique: CT;
     
     
  • Figure 7
    Fig. 4

    Figure 4. Chest CT shows a solitary pulmonary nodule of 5 mm of diameter.

     
    Area of Interest: Lung; Imaging Technique: CT;
     
     
  • Figure 8
    Fig. 5 a

    Figure 5. Microscopic preparations 5a. H-E microscopic preparation: Polyhedral, epitheliomorphic cells forming solid nests. Nuclei were hyperchromatic with vesicles, the cytoplasms were eosinophilic with abundant...

     
    Area of Interest: Musculoskeletal system;
     
     
  • Figure 9
    Fig. 5 b

    Figure 5. Microscopic preparations. 5b. Characteristic intracellular protein carbohydrate crystals were visible with PAS staining.

     
    Area of Interest: Musculoskeletal soft tissue;
     
     
  • Figure 10
    Fig.5 c

    Figure 5. Microscopic preparations. 5c. Citoplasmatic pattern vimentina positive.

     
    Area of Interest: Musculoskeletal soft tissue;
     
     
Figure 1. US: Heterogeneous mass in the buttock with tubular structures corresponding to large blood vessels.
 
Figure 2. MRI of the pelvis. 2a. Sagittal T1-weighted image: Heterogenous mass in the buttock.
 
Figure 2. MRI of the pelvis. 2b. The lesion in coronal T1-weighted image without gadolinium showed a sligthly more intense signal than the surrounding muscles.
 
Figure 2. MRI of the pelvis. 2c. The mass presented high, heterogeneous signal intensity in STIR-weighted images. Tubular void flows within and around the mass are identified.
 
Figure 2. MRI of the pelvis. 2e. In coronal T1-weighted image with gadolinium the lesion enhanced, predominantely in the periphery.
 
Figure 3. CT of the lesion: Heterogenous, peripheral enhancing mass after intravenous contrast administration. No bone erosion was found.
 
Figure 4. Chest CT shows a solitary pulmonary nodule of 5 mm of diameter.
 
Figure 5. Microscopic preparations 5a. H-E microscopic preparation: Polyhedral, epitheliomorphic cells forming solid nests. Nuclei were hyperchromatic with vesicles, the cytoplasms were eosinophilic with abundant glycogen.
 
Figure 5. Microscopic preparations. 5b. Characteristic intracellular protein carbohydrate crystals were visible with PAS staining.
 
Figure 5. Microscopic preparations. 5c. Citoplasmatic pattern vimentina positive.
 
 
 
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