Bakers or Popliteal Cysts Wheeless

Description: - a type of cyst which results from egress of fluid through a normal communication of a bursa (semimembranosus or medial gastrocnemius bursa) or may be caused by herniation of the synovial membrane through the joint capsule;
- symptoms develope most often in the bursa beneath the medial head of gastrocnemius or in the semimembranous bursa;
- later is a double bursa located between the semimembranosus tendon and the medial head of the gastrocnemius;
- Baker's cysts are usually located at or below the joint line, whereas cysts of semimembranous bursa are above the joint line;
Wheeless' Textbook of Orthopaedics