Fig. 2From: Stepwise diagnostic algorithm for high-attenuation pulmonary abnormalities on CTInvasive adenocarcinoma in a 70-year-old man. a CT image shows a right upper lobe mass with eccentric punctate and amorphous calcification (arrows). b Photomicrograph (H-E stain) shows invasive adenocarcinoma with extensive necrosis and calcification (arrows)Back to article page