What is a cystic legion in the knee?

A cystic lesion in the knee refers to a fluid-filled sac that forms within or around the knee joint, often due to various conditions such as trauma, inflammation, or degenerative changes. Common types include Baker's cysts, which occur behind the knee, and ganglion cysts, which can develop in surrounding tissues. These lesions may cause pain, swelling, and limited mobility, but treatment varies depending on the underlying cause and severity of symptoms. In some cases, they may resolve on their own, while others may require medical intervention.