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Objectives: Imaging assessment for the clinical management of femoroacetabular impingement syndrome (FAIS) remains controversial because of a paucity of evidencebased guidance and notable variability in clinical practice, ultimately requiring expert consensus. The purpose of this agreement is to establish expert-based statements on FAIS imaging, using formal techniques of consensus building driven by relevant literature review. Methods:The validated Delphi method and peer-reviewed literature were used to formally derive consensus among 30 panel members (21 musculoskeletal radiologists and 9 orthopedic surgeons) from 13 countries.Forty-two questions were agreed on, and recent relevant seminal literature was circulated and classified in five major topics ("General issues", "Parameters and reporting", "Radiographic assessment", "MRI evaluation" and "Ultrasound") in order to produce answering statements.The level of evidence was noted for all produced statements and panel members were asked to score their level of agreement with each statement (0 to 10) during iterative rounds. Either "group consensus", "group agreement" or "no agreement" was achieved.Items near consensus were further queried using 4 moderated group sessions and in 4 Delphi rounds.Results: Forty-five statements were generated and group consensus was reached for 43 (95.7%). Seventeen of these statements were selected as most important for dissemination in advance. There was no agreement for the two statements pertaining to "Ultrasound". Conclusion:The first international Delphi-based consensus for the imaging assessment of FAIS was developed. The resulting consensus can serve as a tool to reduce variability in clinical practices and guide further research for the clinical management of FAIS. Key Points• FAI imaging literature is extensive although often of low level of evidence.• Radiographic evaluation with a reproducible technique is the cornerstone of hip imaging assessment.• MRI with a dedicated protocol is the gold standard imaging technique for FAI assessment.

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The middle glenohumeral ligament frequently presents variations of the normal anatomy and it is often injured in patients suffering trauma to the glenohumeral joint. The purpose of this pictorial assay is to illustrate the normal anatomy, biomechanics, normal variants and pathology of the middle glenohumeral ligament, as shown on MRI and MR arthrography of the shoulder.

The distal semimembranosus tendon divides into five tendinous arms named the anterior, direct, capsular, inferior and the oblique popliteal ligament. These arms intertwine with the branches of the posterior oblique ligament in the posterior medial aspect of the knee, providing stability. This tendon-ligamentous complex also acts synergistically with the popliteus muscle and actively pulls the posterior horn of the medial meniscus during knee flexion. Pathologic conditions involving this complex include complete and partial tears, insertional tendinosis, avulsion fractures and bursitis.