#1 Arm and Shoulder Pain
As a result of lung cancer spreading from the top of the lung, tumors known as Pancoast tumors can grow in the nerves of the arms and/or shoulders. These tumors can cause Pancoast syndrome, which is characterized by shoulder discomfort radiating to the inner region of the scapula (the large, flat bone that covers the ribs on the back).
Pain may spread to other areas of the body over time, including the inner arm, elbow, pinky, and ring fingers. Pancoast syndrome discomfort might be so severe that prescription pain relievers are required.
