Right upper lobectomy: Moderately differentiated adenocarcinoma, adenocarcinoma in situ, invasive acinar and micropapillary types with maximal diameter of 6 cm. Extension across visceral pleura to visceral pleural surface. Extensive lymphatic permeation in the vicinity of the tumour. 

Adenocarcinoma in situ maximal diameter 2 cm consistent with second primary.

Focal atypical adenomatous hyperplasia.