EURORAD ESR

Case 10672

Anterior cruciate ligament mucoid degeneration: MR findings

Author(s)
Napoli A, Wulf MI, Bruno CH

Diagnóstico por Imágenes Adrogué,
Resonance;
Bynnon 1433
B1846DWA Buenos Aires, Argentina;
Email:augustonapoli@hotmail.com
 
Patient
male, 61 year(s)
 
 
  • Figure 1
    Coronal T2 weighted fat suppressed fast spin echo

    Coronal T2 weighted fat suppressed fast spin echo image shows intraosseous cysts (arrows) in distal femur and proximal tibia, and increased signal within anterior cruciate ligament (asterik).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Cysts;
     
     
  • Figure 2
    Sagittal T2 weighted fat suppressed fast spin echo

    Sagittal T2 weighted fat suppressed fast spin echo image shows proximal ACL ganglion cyst (short arrow). Intraosseous cysts (long arrow) are shown in distal femur and proximal tibia, and increased signal within the...

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 3
    Sagittal PD (A) and T1(B) weighted MR

    Sagittal PD (A) and T1 (B) weighted MR image shows mucoid degeneration with enlarged ACL of almost homogeneous intermediate signal intensity (asterik).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 4
    Oblique PD weighted image

    Oblique PD weighted image. ACL selective acquisitions. A: “Celery Stalk Sign” best viewed. Low signal intensity fibres running parallel to its long axis (arrows). B: Reference image showing the slice angulation...

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 5
    Sagittal T2 weighted image

    Sagittal T2 weighted image. A: Intraosseous cysts (shorts arrows) are shown in distal femur and proximal tibia. Mucoid degeneration with enlarged ACL (asterik). B: proximal anterior cruciate ligament ganglion cyst...

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 6
    MR

    A: ACL oblique selective acquisition. B: “Celery Stalk Sign” representation.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
Coronal T2 weighted fat suppressed fast spin echo image shows intraosseous cysts (arrows) in distal femur and proximal tibia, and increased signal within anterior cruciate ligament (asterik).
 
Sagittal T2 weighted fat suppressed fast spin echo image shows proximal ACL ganglion cyst (short arrow). Intraosseous cysts (long arrow) are shown in distal femur and proximal tibia, and increased signal within the ligament (asterik).
 
Sagittal PD (A) and T1 (B) weighted MR image shows mucoid degeneration with enlarged ACL of almost homogeneous intermediate signal intensity (asterik).
 
Oblique PD weighted image. ACL selective acquisitions. A: “Celery Stalk Sign” best viewed. Low signal intensity fibres running parallel to its long axis (arrows). B: Reference image showing the slice angulation (dotted line).
 
Sagittal T2 weighted image. A: Intraosseous cysts (shorts arrows) are shown in distal femur and proximal tibia. Mucoid degeneration with enlarged ACL (asterik). B: proximal anterior cruciate ligament ganglion cyst (long arrow).
 
A: ACL oblique selective acquisition. B: “Celery Stalk Sign” representation.
 
 
 
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