Which of the following statements about lung carcinoma is true
Squamous cell variant accounts for 70% of all lung cancer
Oat cell variant typically present with cavitation
Oat cell variant is typically associated with hilar adenopathy
Adenocarcinoma variant is typically central in location
Small cell carcinoma usually occurs in central bronchi with associated mediastinal and hilar adenopathy being a common presentation at time of diagnosis Ref Harrison 19th edition pg 515
Respiratory system