Adenocarcinoma in situ of the lung

In situ pulmonary adenocarcinoma (AIS), previously called "Bronchioloalveolar carcinoma" (BAC), is a term describing certain variants of lung cancer arising in the distal bronchioles or alveoli that initially exhibit a specific non-invasive growth pattern. BAC is a type of non-small-cell lung cancer (NSCLC). AIS is defined as a small (≤3 cm) solitary tumour with pure alveolar epithelial appearance ("lepidic" growth), lacking any invasion of the interstitium. If completely resected, the prognosis of surgically treated AIS is 100%.

单词	Bronchioloalveolar carcinoma
释义	Bronchioloalveolar carcinoma 英语百科 Adenocarcinoma in situ of the lung In situ pulmonary adenocarcinoma (AIS), previously called "Bronchioloalveolar carcinoma" (BAC), is a term describing certain variants of lung cancer arising in the distal bronchioles or alveoli that initially exhibit a specific non-invasive growth pattern. BAC is a type of non-small-cell lung cancer (NSCLC). AIS is defined as a small (≤3 cm) solitary tumour with pure alveolar epithelial appearance ("lepidic" growth), lacking any invasion of the interstitium. If completely resected, the prognosis of surgically treated AIS is 100%.
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