EURORAD ESR

Case 15243

Mandibular ameloblastoma with classic radiologic findings

Author(s)
Hernan Nova-Escobar, Vanessa Bornacelli-Barreneche, Carolina Diaz-Angulo

Universidad del Norte,
Barranquilla, Colombia.
Email: hernannova@gmail.com
 
Patient
male, 43 year(s)
 
 
  • Figure 1
    Radiography of the mandible.
     

    Antero-posterior radiograph of the mandible shows an expansile, multicystic, radiolucent lesion, with well-demarcated borders and cortical thinning in the left body of the mandible.

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

    Oblique radiograph of the mandible showing a radiolucent multicystic lesion located near the lower third molar tooth.

     
    Area of Interest: Head and neck; Imaging Technique: Conventional radiography; Procedure: Computer Applications-Detection, diagnosis; Special Focus: Cysts; Demineralisation-Bone; Neoplasia;
     
     
  • Figure 2
    Unenhanced CT of the mandible
     

    Non-contrast coronal CT reveals erosion and cortical thinning of the left hemi-mandible with extension of the lesion into adjacent soft tissues.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Decision analysis; Special Focus: Tissue characterisation;

    Non-contrast axial CT shows erosion of the left body of the mandible and molar teeth with extension into adjacent soft tissues.

     
    Area of Interest: Head and neck; Imaging Technique: CT; Procedure: Decision analysis; Special Focus: Tissue characterisation;
     
     
  • Figure 3
    Ultrasound of the left body of the mandible

    Longitudinal view with ultrasound colour Doppler along the left body of the mandible reveals a mixed solid and cystic lesion with papillary projections and increased internal vascularity.

     
    Area of Interest: Head and neck; Imaging Technique: Ultrasound-Colour Doppler; Procedure: Decision analysis; Special Focus: Tissue characterisation;
     
     
  • Figure 4
    MRI of the mandible
     

    Unenhanced T2 FSE coronal view demonstrates a multi-locular mass with solid/cystic pattern and irregular margins.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Decision analysis; Special Focus: Neoplasia;

    Unenhanced T1WI and enhanced T1 FS + Gd coronal view demonstrates vivid enhancement of the lesion in the left body of the mandible as well as enhancement of adjacent soft tissues.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Decision analysis; Special Focus: Neoplasia;

    Unenhanced axial T1WI and enhanced T1 FS + Gd images demonstrate enhancement of the lesion in the left body of the mandible and of adjacent soft tissues.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Decision analysis; Special Focus: Neoplasia;

    Axial diffusion-weighted imaging and apparent diffusion coefficient images demonstrate low ADC values and high signal on DWI representing restricted diffusion within solid components of the left mandibular body lesion.

     
    Area of Interest: Head and neck; Imaging Technique: MR-Diffusion/Perfusion; Procedure: Decision analysis; Special Focus: Neoplasia;
     
     
Antero-posterior radiograph of the mandible shows an expansile, multicystic, radiolucent lesion, with well-demarcated borders and cortical thinning in the left body of the mandible.
 
Oblique radiograph of the mandible showing a radiolucent multicystic lesion located near the lower third molar tooth.
 
Non-contrast coronal CT reveals erosion and cortical thinning of the left hemi-mandible with extension of the lesion into adjacent soft tissues.
 
Non-contrast axial CT shows erosion of the left body of the mandible and molar teeth with extension into adjacent soft tissues.
 
Longitudinal view with ultrasound colour Doppler along the left body of the mandible reveals a mixed solid and cystic lesion with papillary projections and increased internal vascularity.
 
Unenhanced T2 FSE coronal view demonstrates a multi-locular mass with solid/cystic pattern and irregular margins.
 
Unenhanced T1WI and enhanced T1 FS + Gd coronal view demonstrates vivid enhancement of the lesion in the left body of the mandible as well as enhancement of adjacent soft tissues.
 
Unenhanced axial T1WI and enhanced T1 FS + Gd images demonstrate enhancement of the lesion in the left body of the mandible and of adjacent soft tissues.
 
Axial diffusion-weighted imaging and apparent diffusion coefficient images demonstrate low ADC values and high signal on DWI representing restricted diffusion within solid components of the left mandibular body lesion.
 
 
 
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