<prompt> Most common type of carcinoma lung is ?Small cell carcinomaAdenocarcinomaSquamous cell carcinomaLarge cell carcinoma  <response>: Ans. is b i.e., Adenocarcinoma Lung Carcinoma o Carcinoma of lung is the most common neoplasm of lung, i.e. cancer arising from the epithelial cells. o Lung cancer is the most common cause of cancer related death. o Occurs most often between ages 40 and 70 years. o The major histological types of lung carcinoma are - i Adenocarcina including bronchoalveolar type -- Most common lung cancer world wide. ii Squamous cell carcinoma -- Most common lung cancer in India. iii Small cell carcinoma Oat cell carcinoma. iv Large cell carcinoma These tumors can be divided broadly into two groups ? Small cell carcinoma Non-small cell carcinoma -- Squamous cell carcinoma, adenocarcinoma, Large cell carcinoma. 