The popliteal lymph nodes lie in the tissues behind a person’s knee. Infections and autoimmune conditions can cause them to swell. It is rare for cancer to affect the popliteal lymph nodes. According ...

The Commanders placed McCaffrey (collarbone) on injured reserve Tuesday. As a result of his move to IR, McCaffrey will be sidelined for at least four games due to his fractured collarbone, though ...