Fig. 1From: Idiopathic pulmonary fibrosis diagnosed concomitantly with diffuse squamous cell lung cancer on surgical lung biopsy: a case reportA, B Chest computed tomography in lung windows showing posterior subpleural reticulations at baseline A with no significant change at 2-year follow-up (B). Arrowheads represent the line of biopsy staples. C Idiopathic pulmonary fibrosis lung tissue showing fibroblastic foci and honeycombing [hematoxylin–eosin–saffron (HES) ×50]. D Well-differentiated SCC (HES ×200). E Microinfiltrating SCC (HES ×400)Back to article page