lung papilloma (MONDO_0006278) can be described as follows. A benign papillary neoplasm that arises endobronchially. It is classified as squamous cell, glandular, or mixed squamous cell and glandular papilloma. Patients usually present with signs and symptoms of bronchial obstruction. Also known as: papilloma of respiratory tract, papilloma of the respiratory tract, respiratory tract papilloma.