Argentaffin granules and lung tumours.
D000236:Adenoma / Q000473:pathology; D002276:Carcinoid Tumor / Q000473:pathology*; D002277:Carcinoma / Q000473:pathology; D006801:Humans; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000473:pathology*; D013194:Staining and Labeling