Annexin A2 Expression in the Aerogenous Spread of Pulmonary Invasive Mucinous Adenocarcinoma with Gastric Lineage

Figure 2

Left lung cancer I. (a) Gross view showing an ill-defined tumor with a diffuse pneumonia-like consolidation. Scale bar: 1 cm. (b) The tumor cells exhibit lepidic or papillary growth, with detached tumor cells scattered in the alveolar spaces. Hematoxylin and eosin (H&E) staining, scale bar: 2 mm. (c) Columnar tumor cells with intracytoplasmic vacuoles are shown in a monolayer arrangement. H&E stain, scale bar: 200 μm. (d) Multiple mucin-producing tumor cells are visible. Alcian blue stain, scale bar: 200 μm.

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