[What is the fabella?].
D000368:Aged; D002358:Cartilage, Articular; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging; D007719:Knee Joint; D011859:Radiography; D012716:Sesamoid Bones / Q000000981:diagnostic imaging
Qu'est-ce que la fabella.