EURORAD ESR

Case 15405

Imaging findings in a case of chondroblastic osteosarcoma of the mandible

Author(s)
Scott Riley K. Ong, MD; Johanna Patricia A. Cañal, MD, MHA

Department of Radiology,
University of the Philippines,
Philippine General Hospital,
Taft Avenue, Ermita,
Manila, Philippines
Email: scottrileyong@yahoo.com
 
Patient
female, 40 year(s)
 
 
  • Figure 1
    Mandibular radiograph
     

    Frontal radiograph shows a bone-forming mass in the right mandibular region, with displacement of ipsilateral lower dentition.

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Plain radiographic studies; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    A magnified view more clearly demonstrates widening of the periodontal ligament space (arrow).

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Plain radiographic studies; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 2
    Neck CT
     

    Axial bone window CT shows an expansile bony mass arising from the body of the right hemimandible, with characteristic sunburst periostitis.

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Axial soft tissue window CT image shows involvement of the sublingual space (black arrow). An enlarged right level IB lymph node is also seen (white arrow).

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;

    Coronal soft tissue window CT image depicts the relationship of the mass to the tongue (*), genioglossus (arrows), and floor of mouth.

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Neoplasia;
     
     
  • Figure 3
    3D CT reconstruction
     

    Three-dimensional bony reconstruction of CT images in frontal view shows the local extent and osseous involvement of the right mandibular mass.

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Image manipulation / Reconstruction; Procedure: Computer Applications-3D; Special Focus: Neoplasia;

    Three-dimensional bony reconstruction of CT images (lateral view) shows the local extent and osseous involvement of the right mandibular mass.

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Image manipulation / Reconstruction; Procedure: Computer Applications-3D; Special Focus: Neoplasia;
     
     
  • Figure 4
    Histopathology
     

    Photomicrograph of H&E-stained decalcified specimen in low-power magnification shows hypercellular cartilaginous tissue with lace-like osteoid matrix (bracket).

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Image manipulation / Reconstruction; Procedure: Biopsy; Special Focus: Neoplasia;

    High-power magnification shows areas of active calcification, seen as stippled portions of the osteoid matrix (solid arrows), and large cartilage-producing cells exhibiting pleomorphism and prominent nucleoli (open...

     
    Area of Interest: Head and neck; Oncology; Imaging Technique: Image manipulation / Reconstruction; Procedure: Biopsy; Special Focus: Neoplasia;
     
     
Frontal radiograph shows a bone-forming mass in the right mandibular region, with displacement of ipsilateral lower dentition.
 
A magnified view more clearly demonstrates widening of the periodontal ligament space (arrow).
 
Axial bone window CT shows an expansile bony mass arising from the body of the right hemimandible, with characteristic sunburst periostitis.
 
Axial soft tissue window CT image shows involvement of the sublingual space (black arrow). An enlarged right level IB lymph node is also seen (white arrow).
 
Coronal soft tissue window CT image depicts the relationship of the mass to the tongue (*), genioglossus (arrows), and floor of mouth.
 
Three-dimensional bony reconstruction of CT images in frontal view shows the local extent and osseous involvement of the right mandibular mass.
 
Three-dimensional bony reconstruction of CT images (lateral view) shows the local extent and osseous involvement of the right mandibular mass.
 
Photomicrograph of H&E-stained decalcified specimen in low-power magnification shows hypercellular cartilaginous tissue with lace-like osteoid matrix (bracket).
 
High-power magnification shows areas of active calcification, seen as stippled portions of the osteoid matrix (solid arrows), and large cartilage-producing cells exhibiting pleomorphism and prominent nucleoli (open arrows).
 
 
 
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