Chiari 1 malformation with syrinx

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Headache with numbness of both hands.

Patient Data

Age: 14 years
Gender: Male
This study is a stack
Sagittal
T1
This study is a stack
Axial
FLAIR
This study is a stack
Coronal
T2
This study is a stack
Axial
T1 C+
This study is a stack
Sagittal
FIESTA
This study is a stack
Sagittal
T2
This study is a stack
Sagittal
T1
This study is a stack
Sagittal
STIR
This study is a stack
Axial
T2
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Info
  • caudal descent of the cerebellar tonsils through the foramen magnum (10 mm below the McRae line) with obliteration of the cisterna magna in keeping with Chiari I malformation

  • central cystic cavity of the spinal cord of low signal on T1, and high signal on T2 and STIR, extending from the cervicomedullary junction C2 to conus medullaris in keeping with a syrinx.

Case Discussion

MRI features of Chiari 1 malformation with associated spinal cord syrinx.

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