EURORAD ESR

Case 15185

Pilomatricoma

Author(s)
Pedro Ninitas1, Ana Luísa Costa1, Artur Costa e Silva2, Dulce Antunes1

Hospital santa Maria , Centro hospitalar Lisboa norte, 1 - Serviço imagiologia Geral; 2 - Serviço de anatomia patológica; Avenida professor egas Moniz 1649-035 Lisbon, Portugal; Email:pmninitas@gmail.com
 
Patient
male, 47 year(s)
 
 
  • Figure 1
    Unenhanced Computed Tomography (CT)
     

    Axial unenhanced CT shows a large superficial mass (large arrows) in the right thoracic wall. The mass is hypodense with small hyperdense foci (small arrows)

     
    Area of Interest: Thoracic wall; Imaging Technique: CT; Procedure: Education; Special Focus: Neoplasia;

    Sagital unenhanced CT image shows a large superficial mass in the right thoracic wall (large arrows)

     
    Area of Interest: Thoracic wall; Imaging Technique: CT; Procedure: Education; Special Focus: Neoplasia;
     
     
  • Figure 2
    Computed Tomography (CT) after contrast administration
     

    Axial CT after administration of contrast agent shows a superficial mass with solid and cystic/necrotic components.

     
    Area of Interest: Thoracic wall; Imaging Technique: CT; Procedure: Education; Special Focus: Neoplasia;

    Sagital CT after administration of contrast agent shows a superficial mass with solid and cystic/necrotic components.

     
    Area of Interest: Thoracic wall; Imaging Technique: CT; Procedure: Education; Special Focus: Neoplasia;
     
     
  • Figure 3
    3D image

    The 3D reformatation image reveals the macroscopic aspect of the mass

     
    Area of Interest: Thoracic wall; Imaging Technique: CT; Procedure: Education; Special Focus: Neoplasia;
     
     
  • Figure 4
    Histhologic images
     

    Lobulated mass of epithelial cells and connective tissue stroma with inflammatory cell infiltrate, some foreign-body giant cells and a keratin pearl. (H&E)

     
    Area of Interest: Thoracic wall; Imaging Technique: Percutaneous; Procedure: Biopsy; Special Focus: Neoplasia;

    Basophilic cells, one of the cell types, have scanty cytoplasm, indistinct cell borders, hyperchromatic nuclei and several mitoses. (H&E)

     
    Area of Interest: Thoracic wall; Imaging Technique: Percutaneous; Procedure: Biopsy; Special Focus: Neoplasia;

    Shadow (mummified) eosinophilic cells, the other cell type, have more cytoplasm, distinct cell borders and no nuclear staining. (H&E)

     
    Area of Interest: Thoracic wall; Imaging Technique: Percutaneous; Procedure: Biopsy; Special Focus: Neoplasia;
     
     
Axial unenhanced CT shows a large superficial mass (large arrows) in the right thoracic wall. The mass is hypodense with small hyperdense foci (small arrows)
 
Sagital unenhanced CT image shows a large superficial mass in the right thoracic wall (large arrows)
 
Axial CT after administration of contrast agent shows a superficial mass with solid and cystic/necrotic components.
 
Sagital CT after administration of contrast agent shows a superficial mass with solid and cystic/necrotic components.
 
The 3D reformatation image reveals the macroscopic aspect of the mass
 
Lobulated mass of epithelial cells and connective tissue stroma with inflammatory cell infiltrate, some foreign-body giant cells and a keratin pearl. (H&E)
 
Basophilic cells, one of the cell types, have scanty cytoplasm, indistinct cell borders, hyperchromatic nuclei and several mitoses. (H&E)
 
Shadow (mummified) eosinophilic cells, the other cell type, have more cytoplasm, distinct cell borders and no nuclear staining. (H&E)
 
 
 
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