EURORAD ESR

Case 581

Squamous cell carcinoma with perineural spread

Author(s)
R Sigal, F Eschwège, B Luboinski
 
Patient
female, 50 year(s)
 
 
  • Figure 1
    MR imaging of perineural spread
     

    Axial T1W view demonstrates an abnormal low signal intensity area in the left pterygopalatine fossa (red arrow). The right pterygopalatine fossa displays a normal high signal intensity due to its faaty content (green...

     
    Area of Interest: unknown; Imaging Technique: MR imaging of perineural spread;

    After Gadolinium injection, the axial T1W view shows an abnormal enlargement of the maxillary nerve (V2) in the upper pterygopalatine fossa and and foramen rotundum, with marked contrast enhancement (red arrow). The...

     
    Area of Interest: unknown; Imaging Technique: MR imaging of perineural spread;

    coronal Gd T1W view confirms abnormal enlargment and enhancement of the maxillary nerve (V2) in the foramen rotundum (red arrow). It also displays invasion of the vidian nerve in the vidian canal (orange arrow).

     
    Area of Interest: unknown; Imaging Technique: MR imaging of perineural spread;
     
     
Axial T1W view demonstrates an abnormal low signal intensity area in the left pterygopalatine fossa (red arrow). The right pterygopalatine fossa displays a normal high signal intensity due to its faaty content (green arrow). The left nasal fossa and maxillary sinus show non specific post therapeutic changes (yellow arrow).
 
After Gadolinium injection, the axial T1W view shows an abnormal enlargement of the maxillary nerve (V2) in the upper pterygopalatine fossa and and foramen rotundum, with marked contrast enhancement (red arrow). The venous portion of the cavernous sinus physiologically enhances with contrast (blue arrow), and the internal carotid artery is displayed with low signal intensity (flow void). The sinonasal cavity shows nonspecific enhancement due to post irradiation and surgical inflammation.
 
coronal Gd T1W view confirms abnormal enlargment and enhancement of the maxillary nerve (V2) in the foramen rotundum (red arrow). It also displays invasion of the vidian nerve in the vidian canal (orange arrow).
 
 
 
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