Lung cancer is currently one of the most common causes of death worldwide, with low rates of survival after diagnosis being reported in developed and underdeveloped countries.¹ According to recent statistics, the 5-year survival rate is only 16%² and it has been estimated that by the year 2020, 12 million cancer-related fatalities will occur annually, of which lung cancer will have the largest share.³ However, survival rates can be improved,¹ if nodules are detected early enough. Lung nodules are abnormal growths of tissue that could represent lung cancer. They are typically round/spherical in shape with diameters of up to 30 mm.⁴ Nodules are categorized as well circumscribed, juxtavascular, juxtapleural, and pleural tail. Well-circumscribed nodules are independent and have no extensions into the surrounding anatomical structures, whereas juxtavascular nodules exhibit strong adherence to proximal vessels, and juxtapleural nodules are attached to neighboring pleural surfaces. Pleural-tail nodules have tails that are adherent to the nodule but not to pleural walls. In addition, pulmonary nodules are categorized as solid and subsolid nodules (SSNs), irrespective of their positions. SSNs are further classified as part-solid nodules and pure ground-glass nodules. Solid nodules are the most common type of nodules, and these repress the underlying functional lung tissues. SSNs are pulmonary nodules with partial ground-glass opacity (GGO). These nodules exhibit opacifications with higher density than the surrounding tissues and do not obscure underlying bronchovascular structures.⁵ Sample images of different nodules are shown in Fig. 1.