<prompt> Answer this question truthfullyWhat is the history of lung cancer and what are its symptoms?  <response>: <reason> Specific areas of focus when obtaining the history are outlined below: Age Family history of cancer Personal history of cancer Positive history of active passive smoking Number of cigarettes year Number of yearsmonths of active smoking Number of yearsmonths of second-hand smoking Number of yearsmonths since smoking cessation Previous primary infection of tuberculosis Onset of pulmonary symptoms Acute 6 weeks Chronic 6 weeks Previous or current lung disease, such as: Chronic obstructive pulmonary disease Interstitial lung diseaseSeveral patient factors may influence the likelihood of a benign versus a malignant condition; these include previous exposure to smoke or other carcinogens such as asbestos, and previously diagnosed cancer or respiratory infections. A patient with airway symptoms, especially hemoptysis, is more likely to have cancer compared to a patient with no respiratory symptoms.Symptoms that suggest lung cancer include: Difficulty breathing Hemoptysis Chronic coughing Non-resolving pneumonia Wheezing Chest pain Abdominal pain Weakness and wasting Fatigue Loss of appetite Difficulty speaking Difficulty swallowingVarious paraneoplastic phenomena can arise in the setting of lung cancer: SIADH causing hyponatraemia: Small cell lung cancer ACTH secretion Cushing syndrome: Carcinoid tumor and small cell lung cancer Parathyroid Hormone-Related Peptide PTHrP causing hypercalcaemia: Squamous cell carcinoma of the lung Carcinoid syndrome GynaecomastiaPolyneuropathy Myelopathy Cerebellar degeneration Lambert-Eaton myasthenic syndromeDigital clubbing Hypertrophic pulmonary osteoarthropathy HPOA: Squamous cell carcinoma of the lung Nephrotic syndrome Polymyositis Dermatomyositis Eosinophilia Acanthosis nigricans Thrombophlebitis: Adenocarcinoma of the lung 