What is a pasterior right lower lobe pareachynal nodule abutting. The pleaura exhibits stripped internal calcification just need to know what it is

A . A parenchymal nodule is an area of abnormal density in the tissue of the lung. The fact that it abuts the pleura means that it is at the edge of the lung. Based on that description alone, this could be just about anything, from an area of infection to a tumor. The fact that is contains calcium in it means that it has been present for a while, and that usually means a benign process, but that can't really be determined without comparing to old studies or doing follow-up images to show no change over time.