Buckled meniscus.
Normal menisci may show transient distortion during knee arthrography. This usually results from intermittent visualization of the meniscus out of direct profile to the x-ray beam. Similar transient distortion may result from actual buckling of an anatomically normal meniscus during stressful maneuvers in young individuals.
D000328:Adult; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging*; D008297:Male; D008722:Methods; D009068:Movement; D011859:Radiography; D013977:Tibia / Q000000981:diagnostic imaging*