摘要: Owing to the rather large number of recent reports on primary cancer lung, another contribution may seem be an unnecessary addition already extensive literature. As we review this subject and reflect past experiences, suspect that many cases have been overlooked owing a lack complete understanding or inadequate study material. Particularly was true decade more ago when disease appeared less rarity. Recently there has reported increase in lung figure approaching 2 per cent all patients coming autopsy. Wells 1 said, "There seems little doubt is now common Europe America than it even ten fifteen years ago." The appears so