Most common benign tumour of lung is
a. Benign tumors of the lung account for less than 1% of all lung neoplasms and arise from mesodermal origins .
b. Hamartomas are the most frequent benign lung tumor; hamartomas consist of normal tissue elements found in an abnormal location.
c. Most commonly, hamartomas are manifested by overgrowth of cartilage.
d. Hamartomas are typically identified at 40 to 60 years of age and have a 2:1 male-to-female predominance.
e. They are usually peripheral.The chest x-ray usually demonstrates a 2- to 3-cm mass that is sharply demarcated and frequently lobulated. It is usually not calcified, but the “popcorn” appearance on chest x-ray may provide the diagnosis of hamartoma