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Congress: ECR25
Poster Number: C-24402
Type: Poster: EPOS Radiologist (educational)
DOI: 10.26044/ecr2025/C-24402
Authorblock: F. N. Avalos, P. A. Daza, C. Almeida Cedeño, J. B. Silva Hidalgo, D. Perez; Quito/EC
Disclosures:
Fernanda Natalia Avalos: Nothing to disclose
Pedro Andres Daza: Nothing to disclose
Carlos Almeida Cedeño: Nothing to disclose
Jorge Bolivar Silva Hidalgo: Nothing to disclose
Dayana Perez: Nothing to disclose
Keywords: Musculoskeletal system, CT, MR, Ultrasound, Education, Acute
Learning objectives Some lesions may be easier to identify than others. While ruptured tendons are notorious, an anatomic entrapment or thin avulsion may be overlooked. Things that we are unaware of, will remain unseen. Thus, knowledge is key to recognition.Reviewing ALL MSK acute pathology is beyond this scope, we will discuss only extra-articular lesions. [fig 1] The following poster focuses on the most common lesions in sports medicine. Tears, entrapments, avulsion lesions, contusion, hematoma, edema, and soft tissues (TEACHES)  [fig 3] [fig 2]  
Read more Background In our practice, athletes' most common extraarticular lesions are muscle and tendon tears. Ultrasound and MRI are the best choices for their evaluation. While MRI is the gold standard, recent studies show that ultrasound performed on a sports-centered facility is comparable(1).Muscle fibers are disposed towards the central tendon. Tendons are inserted in the periosteum and cortex of the corresponding bone. Chains break on their weaker link, such as tears may appear where the fibers change their disposition or composition(2). Muscle tears...
Read more Findings and procedure details For a more dynamic review, we divided the findings according to the acronym TEACHES: [fig 21] T: TearsAs described earlier, muscle tears must be evaluated according to the anatomical structures that were damaged. Tendinous and aponeurotic tissue involve longer recovery times. Also, ultrasound may not have the best findings in the first 72 hours. (2). Use fat-saturated images to identify the lesion and, if possible, measure tendinous ruptures on a pure sequence. Saturated images may exaggerate the length of the rupture. [fig 4] ,...
Read more Conclusion Pain is the guiding principle of study selection. MRI is the gold standard on most lesions. Also, it is important to mention that in the first 72 hours, ultrasound may not be able to adequately diagnose muscle tears. But for follow-up, it remains a great option.When evaluating muscle tears the key point is to identify the anatomical structure compromised, measurement is important too but is secondary.Hematoma is a common complication, and mostly resolves spontaneously, but in some cases like interfascial...
Read more References 1. Spicer PJ, Fain AD, Soliman SB. Ultrasound in Sports Medicine. Radiol Clin North Am. 2019 May;57(3):649–56. 2. Isern-Kebschull J, Mechó S, Pedret C, Pruna R, Alomar X, Kassarjian A, et al. Muscle Healing in Sports Injuries: MRI Findings and Proposed Classification Based on a Single Institutional Experience and Clinical Observation. RadioGraphics. 2024 Aug 1;44(8). 3. Nguyen JC, De Smet AA, Graf BK, Rosas HG. MR Imaging–based Diagnosis and Classification of Meniscal Tears. RadioGraphics. 2014 Jul;34(4):981–99. 4. Pathria MN, Chung CB, Resnick DL....
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