The cyamella is a rare, asymptomatic knee sesamoid bone located in the proximal tendon of the popliteal muscle, usually seen at the lateral face of the distal femur in the popliteal groove. The anterior-posterior view of a plain radiograph is where cyamella is most seen. It is more frequently observed in less evolved primates and a large percentage of dogs.
Hi, Welcome to icliniq.com. The extra bone is a sesamoid bone called fabella or cyamella. These sesamoid bones are normal anatomical variants. They are nonfunctional in humans.
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