Fig. 15From: Differential diagnoses of cavitary lung lesions on computed tomography: a pictorial essayCoronal reconstruction CT image of the chest in the lung window of a 70-year-old male, showing in the left superior lobe an excavated mass with a thick wall, irregular margins and a totally air content, proven to be an epidermoid carcinoma on pathology. To note bilateral pulmonary emphysema, more marked in the right superior lobeBack to article page