Symptoms Of A Pancoast Tumor

Upper Arm Swelling

Another serious symptom of Pancoast tumors is upper arm swelling, which comes from pressure on the subclavian vein, the vein that runs under the collarbone. When the top portion of an individual's arm swells and becomes larger than its normal size, it can be difficult to rest the arm. Some individuals experiencing upper arm swelling may also have trouble lifting their arms because of the severe inflammation. The swelling can also cause pressure in the chest and shoulders. Nerves in the top part of the chest or collarbone region can also be affected, since the vein underneath the collarbone is directly affected.