Invasive mucinous adenocarcinoma of lung. The tumor showed a prominent lepidic growth pattern as well as multicentric aerogenous spread. The solid white nodule represents the invasive component surrounded by poorly-defined areas resembling bronchopneumonia that correspond to the lepidic growth. Image courtesy of: Daniel Prieto Cuadra, MD PhD, Hospital Universitario Virgen de la Victoria, Málaga, Spain. Used with permission.