EURORAD ESR

Case 15743

Granulomatosis with polyangitis with hypertrophic pachymeningitis manifesting as low T2 signal on MRI

Author(s)
Anpalakhan Sheela, Ahmed Hena, Garryck S-S Tan

Radiology Department, Darent Valley Hospital, Dartford and Gravesham NHS Trust; Darenth Wood Road DA2 8DA Dartford; Email:sheelaa265@gmail.com
 
Patient
male, 32 year(s)
 
 
  • Figure 1
    MRI head: Axial T2

    MRI head axial T2 image: There is diffuse low T2- weighted signal within the tentorium (red arrow). There has been previous right temporal brain biopsy (blue arrow)

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Imaging sequences; Special Focus: Hyperplasia / Hypertrophy;
     
     
  • Figure 2
    MRI head: Axial T2

    Further MRI head showing low T2- weighted signal within the posterior falx (red arrow) in keeping with hypertrophic pachymeningitis.

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Imaging sequences; Special Focus: Hyperplasia / Hypertrophy;
     
     
  • Figure 3
    MRI head: Axial T1 post gadolinum

    The tentorium is seen as low signal on T1 with peripheral enhancement (yellow arrow)

     
    Area of Interest: Head and neck; Imaging Technique: MR; Procedure: Imaging sequences; Special Focus: Hyperplasia / Hypertrophy;
     
     
MRI head axial T2 image: There is diffuse low T2- weighted signal within the tentorium (red arrow). There has been previous right temporal brain biopsy (blue arrow)
 
Further MRI head showing low T2- weighted signal within the posterior falx (red arrow) in keeping with hypertrophic pachymeningitis.
 
The tentorium is seen as low signal on T1 with peripheral enhancement (yellow arrow)
 
 
 
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