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🧐 Double Posterior Cruciate Ligament (PCL) Sign:
Double posterior cruciate ligament (PCL) sign results from meniscal material in the notch, inferior and parallel to the PCL in the same sagittal plane.
The intact ACL serves as a barrier, preventing further lateral displacement of the meniscal segment.
👥 Mimics of the Double PCL Sign 👥:
- (Fig 1-A.05) Lateral Meniscus posterior root
- (Fig 1-A.11) Meniscofemoral ligaments (Humphrey ligament)
- (Fig 1-A.17) Oblique meniscomeniscal ligament
- (Fig 1-A.17) Oblique meniscomeniscal ligament
🧩 Double Anterior Horn Sign:
The double anterior horn sign is presented as two adjacent triangular seemingly anterior horns on a sagittal image.
The anterior triangle represents the normal anterior horn, while the posterior triangle represents the displaced bucket handle segment.
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'✅ Knee MRI Mastery > Chap 1. Meniscus' 카테고리의 다른 글
| (Fig 1-B.22) Absent Bow Tie and Disproportional Posterior Horn Signs (0) | 2024.02.04 |
|---|---|
| (Fig 1-B.21) Double ACL Sign Bucket-Handle Tear (Lateral meniscus) (0) | 2024.02.03 |
| (Fig 1-B.19) Complex meniscal tear (2) | 2024.02.01 |
| (Fig 1-B.18) Change in the slope of a flap tear (0) | 2024.01.31 |
| (Fig 1-B.17) Horizontal tear versus horizontal flap tear (0) | 2024.01.30 |
