Low-dose CT screening image and follow-up diagnostic CT image. Low-dose CT screening image with an image slice thickness and interval of 3 mm. Follow-up diagnostic CT image with an image slice thickness and interval of 1 mm. A 46-year-old man with pleural dissemination and adenocarcinoma presenting as a solid nodule with spiculation in the right upper lobe. Results of pathological staging in an operable patient (T4N2M1).