EURORAD ESR

Case 12576

Postoperative maxillary cyst revealed after trauma

Author(s)
Lenoir V, Ailianou A, Martin S, Becker M

Department of Radiology,
Geneva University Hospital,
University of Geneva,
Rue Gabrielle-Perret-Gentil 4,
1211 Geneva 14, Switzerland
Email:vincent.lenoir@hcuge.ch
 
Patient
male, 99 year(s)
 
 
  • Figure 1
    CT without contrast injection
     

    Coronal MPR (bone windowing). Bone defects of right maxillary sinus, associated with a lower right turbinectomy consistent with sino-nasal surgery.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Axial MPR (soft tissue windowing). Expansile round mass situated in the right maxillary and pre-maxillary region with intermediate density (29 HU).

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Sagittal MPR (soft tissue windowing). Round premaxillary mass extending into the orbit, and displacing the occular globe upwards.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 2
    3D CT reconstruction of the maxillary bone

    3D bone volume rendering reconstruction shows remodelling of the right maxillary sinus with large bony defects consistent with an old maxillary sinus surgery involving the floor of the orbit.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Inflammation;
     
     
  • Figure 3
    Ultrasound with doppler mode

    Ultrasound of the right maxillary region shows the cystic nature of the lesion, which contains small echogenic sedimented elements, without vascularisation.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: Ultrasound-Colour Doppler; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 4
    MRI
     

    Axial T2-weighted images (TR/TE = 38712/94; slice = 3mm). The lesion is hyperintense, with peripheral hypointense elements that may correspond to calcifications in the lesion margins (arrows).

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Axial T1-weighted images (TR/TE = 697/13; slice = 3mm). The lesion is predominantly hyperintense due to its high protein content with a hypointense periphery.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Axial T1-weighted substraction image (TR/TE = 697/13; slice = 3 mm). The lesion shows a minimal fine peripheral enhancement after intravenous injection of gadolinium.

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Axial VIBE with gadolinium injection (TR/TE=6.86/2.39; slice=0.8mm). There is no relationship between the cystic mass and the lacrimal tract (arrows).

     
    Area of Interest: Ear / Nose / Throat; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
Coronal MPR (bone windowing). Bone defects of right maxillary sinus, associated with a lower right turbinectomy consistent with sino-nasal surgery.
 
Axial MPR (soft tissue windowing). Expansile round mass situated in the right maxillary and pre-maxillary region with intermediate density (29 HU).
 
Sagittal MPR (soft tissue windowing). Round premaxillary mass extending into the orbit, and displacing the occular globe upwards.
 
3D bone volume rendering reconstruction shows remodelling of the right maxillary sinus with large bony defects consistent with an old maxillary sinus surgery involving the floor of the orbit.
 
Ultrasound of the right maxillary region shows the cystic nature of the lesion, which contains small echogenic sedimented elements, without vascularisation.
 
Axial T2-weighted images (TR/TE = 38712/94; slice = 3mm). The lesion is hyperintense, with peripheral hypointense elements that may correspond to calcifications in the lesion margins (arrows).
 
Axial T1-weighted images (TR/TE = 697/13; slice = 3mm). The lesion is predominantly hyperintense due to its high protein content with a hypointense periphery.
 
Axial T1-weighted substraction image (TR/TE = 697/13; slice = 3 mm). The lesion shows a minimal fine peripheral enhancement after intravenous injection of gadolinium.
 
Axial VIBE with gadolinium injection (TR/TE=6.86/2.39; slice=0.8mm). There is no relationship between the cystic mass and the lacrimal tract (arrows).
 
 
 
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