Lung cancer is one of the top killers in developed and of late developing countries. More than a million deaths are reported worldwide. Smoking still remains the number one risk factor for lung cancer. Other risk factors include passive or second-hand smoke, Asbestos exposure, Radon exposure, and genetic mutations. Lung cancer remains one of the most preventive cancers and yet many people are falling prey to this deadly cancer. Early diagnosis still remains the mainstay in helping people with lung cancer have a longer life expectancy. There are some unusual symptoms of lung cancer that you should be aware of to help in an early diagnosis. 1. Shoulder or upper back pain: Shoulder or upper back pain is an often unnoticed symptom of lung cancer caused by the tumour pressing on the lining of the lungs. 2. Swelling of the face and neck: The venous drainage of the upper part of the body is Superior Venacava. Pressure from the tumour can lead to impaired venous and lymphatic drainage leading