Fig. 1From: Pulmonary mucinous adenocarcinomas: a clinicopathologic series with emphasis on the prognostic significance of spread through alveolar spaces, and presence of solid growth componentTypes of tumor cell. a. Columnar cells with cytoplasmic clearing. b. PAS (with diastase pretreatment) demonstrates diffuse cytoplasmic staining with basal nuclei. c. Cuboidal cells with eosinophilic cytoplasm. d. PAS/diastase shows apical and brush border mucin with extravasation into glandular lumenBack to article page