New 7.7 cm elliptical cavitary/cystic lesion in the superior segment of the right lower lobe with an adjacent lung nodule, raising concerns for infection (including tuberculosis and fungal organisms), complicated aspiration pneumonia, or less likely, metastatic disease given the patient's history of gastric cancer.
Cavitating mass with content (Uncertain) Pneumonia (Uncertain) Aspiration (Uncertain) Nodule/Solitary lung nodule (Present)