<prompt> Popcorn calcification is seen in-Pulmonary hamartomaPulmonary hemorrhagePulmonary teratomaPulmonary embolism  <response>: Ans is a i.e. Pulmonary hamartoma o Lung hamartomas Peripheral lung masses Composed of normal pulmonary tissue components. More common in men than in women peak incidence in the 60s. Often incidental radiographic findings as solitary nodules. The have a pathognomonic popcorn pattern of calcification in some cases: without such a finding, resection is necessary to rule out malignancy, especially in smokers. 