Abstract: The intestinal type of lung adenocarcinoma is a very rare subtype of lung adenocarcinoma, presenting with pulmonary symptoms, but without any gastrointestinal symptoms and pathological changes. The author found 1 case of double primary lung adenocarcinoma of the left lung, which was confirmed by surgery pathology, one for lung adenocarcinoma, one for a rare type of intestinal adenocarcinoma. This paper reviews the relevant literatures of the diagnosis and treatment of this case.

Key words: lung neoplasms, case reports, lung adenocarcinoma, lung enteric adenocarcinoma