Subsolid pulmonary nodules, which comprise pure ground glass and part-solid nodules, are commonly identified incidentally or as part of lung cancer screening. Our detection of subsolid nodules has grown dramatically over the last decade as thin section CT has become widely available. Additionally, our understanding of these nodules has progressed recently with the updated classification of lung adenocarcinoma in 2011 [1]. Subsolid nodules present a particular dilemma for radiologists and clinicians, as they have a higher rate of malignancy than solid nodules but, when malignant, demonstrate indolent behavior compared to solid lung cancers.
