Abstract Archives of the RSNA, 2014
MKE143
MRI Evaluation of Anatomic Variations of Menisci and Perimeniscal Ligaments Anatomy and Potential Related Pitfalls
Education Exhibits
Presented in 2014
Marcelo Novelino Simao MD, PhD, Presenter: Nothing to Disclose
Marcello Henrique Nogueira-Barbosa MD, PhD, Abstract Co-Author: Nothing to Disclose
Improve knowledge of meniscal anatomical variants and normal anatomy of perimeniscal ligaments;
Contribute to accurate interpretation of menisci tears and avoid potential pitfalls;
Anatomic menisci variants
- Common: discoid shape
- Uncommon: ring, hypoplastic, double bundle, ossicle
- Potential related pitfalls (PRP): pseudodiscoid, bucket handle tear, discoid meniscus perforation, displaced fragment, meniscal degeneration, chondrocalcinosis
Perimeniscal ligaments
- Common: meniscocapsular ligaments, meniscofemoral ligaments, anterior transverse ligament
- Uncommon: posterior transverse ligament and oblique intermeniscal ligaments
- PRP: peripheral meniscal tears and displaced fragments
Meniscoligamentous extensions
- Common: bands from anterior cruciate ligament to anterior horn lateral menisci
- Uncommon: bands from posterior horn lateral menisci to anterior cruciate ligament and anomalous band from anterior horn medial menisci to anterior cruciate ligament.
- PRP: meniscal tears, displaced fragment, ACL tear
- Another teaching points: meniscal cyst dissemination, misinterpretation as infrapatellar plica
A detailed description of the anatomy and related pitfalls will be given with the aim of improve understanding Knee MRI examinations and help make more efficient interpretation.
http://abstract.rsna.org/uploads/2014/14006310/14006310_l89g.pdf
Simao, M,
Nogueira-Barbosa, M,
MRI Evaluation of Anatomic Variations of Menisci and Perimeniscal Ligaments Anatomy and Potential Related Pitfalls. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14006310.html