Flipped meniscus - anterior horn lateral meniscus

Case contributed by Dr Mostafa El-Feky


Painful right knee

Patient Data

Age: 20 years
Gender: Male

Right knee joint

Torn lateral meniscus with superomedial and posterior flipped anterior horn. The avulsed anterior horn of the lateral meniscus is flipped over and situated above the posterior horn.

Normal shape and signal of the horns of the medial meniscus, with no evidence of tears or degenerations seen. Normal course and intensity of both cruciate ligaments.

Abundant effusion.

Suprapatellar plica noticed, with no related cartilaginous erosions.

Case Discussion

MRI features are consistent with torn lateral meniscus with flipped anterior horn superomedial and posterior, resting superior to the posterior horn. This case features the following signs of meniscal tear:


Case courtesy, Prof. Dr. Khaled Matrawy, Professor of radiology, Alexandria university, Egypt.

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Case information

rID: 75066
Published: 20th Mar 2020
Last edited: 5th Oct 2020
Inclusion in quiz mode: Included
Institution: Dar El Ashaa Center

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