AST Surgical Technologist Practice Exam

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Where is a Baker's cyst commonly located?

Ankles
Elbow
Popliteal fossa
Knees

The correct answer is: Popliteal fossa

A Baker's cyst is commonly located in the popliteal fossa, which is the area at the back of the knee. This cyst is formed as a result of excess joint fluid being pushed into a bursa, often due to conditions like arthritis or a knee injury. The popliteal fossa is specifically associated with the structures of the knee joint and is the most frequent site for a Baker's cyst to develop, making it a reliable anatomical feature for identifying this condition. While Baker's cysts can affect the knee region, it is the specific location in the popliteal fossa that defines their typical presentation. Other areas such as the ankles and elbows do not commonly harbor Baker's cysts, and the knee itself is more about the joint involved. Therefore, understanding the anatomical relationship and pathophysiology helps clarify why the popliteal fossa is the correct choice.