minimally invasive lung adenocarcinoma (MONDO_0004991, a Monarch Disease Ontology entry) is a solitary adenocarcinoma arising from the lung measuring 3 cm or less. It is characterized by a predominantly lepidic pattern and 5 mm or less invasion in greatest dimension. It is usually a non-mucinous adenocarcinoma, but rarely may be mucinous. Also known as: BAC, bac, bronchioalveolar adenocarcinoma of lung, bronchioalveolar adenocarcinoma of the lung, bronchioalveolar lung carcinoma, bronchiolo-alveolar carcinoma of lung, bronchiolo-alveolar carcinoma of the lung, bronchiolo-alveolar lung carcinoma.