MONDO_0003427 (bronchus adenoma) is a benign lung neoplasm characterized by the presence of a fibrovascular stroma lined by cuboidal to columnar cells. Patients are usually asymptomatic and it is incidentally discovered as a pulmonary nodule during chest X-ray examination. Surgical excision is curative. Also known as: adenoma of bronchus, adenoma of the bronchus, adenoma, bronchial, benign, bronchial adenoma, bronchial adenoma NOS (morphologic abnormality), lung papillary adenoma, papillary adenoma of type II pneumocytes, peripheral papillary tumor of type II pneumocytes.