Lung Carcinoma
Lung Carcinoma is the most common cause of cancer mortality world-wide. The most important risk factor associated with it is smoking while the other risk factors are radiation, asbestos, and arsenic exposure. On the basis of histology it is of two types: 1. Small cell lung Carcinoma 2. Non-small cell lung Carcinoma (most common) Non small lung Carcinoma is further diveded into . Squamous Cell Carcinoma (most common cancer in smoker) . Adenocarcinoma (most common lung cancer in non-smokers) . Large cell carcinoma Patient presents with cough, dyspnea, digital clubbing, recurrent pneumonia in the same region, weight loss, chest pain. It's mediastinal spread results Hoarness and bovine cough (involvement of recurrent laryngeal nerve), Diaphragmatic paralysis (involvement of phrenic nerve), Dysphagia (involvement of Esophagus), Superior vena cava syndrome (involvement of superior vena cava), Horner syndrome (involvement of sympathetic nerve chain).