Hi, Thanks for your question. I want to know presence of any symptoms like- - Cough, cold, breathing difficulty. - Fever. - Weight loss. - Decreased apatite. - Habits like smoking. There may be possibility of swelling arising from supraclavicular lymph-node or rarely from ribs (it is unlikely). I would like to advise you to consult your doctor for detailed clinical examiantion. Following investigations may be advisable to confirm diagnosis and appropriate treatment. - Complete blood count. - ESR, CRP. - Chest xray. - Ultrasound of local area and abdomen and pelvis. - CT scan of chest. - Liver and Renal function test. Hope this helps you, is so do vote as helpful.