Fig. 2
From: Lung cancer in older patients with granulomatosis with polyangiitis: a report of three cases
Patient 2. Chest CT, lung window, axial plane; histological examination. a Baseline study showed the cavitated lesion in segment 6 of the right lower lobe (white arrow) which decreased in the next examination (b). A follow-up examination 5 years later showed a new lesion with cavitation in the left upper lobe (white arrow) (c). d Microscopic image of keratinizing squamous cell carcinoma. Resection specimen (hematoxylin and eosin stain, magnification × 200)