Annexin A2 Expression in Aerogenous Metastasis of Pulmonary Invasive Mucinous Adenocarcinoma: A Case Report including Immunohistochemical Analysis

Figure 2

Left lung cancer. (a) Gross view shows an ill-defined gelatinous tumor with a diffuse pneumonia-like consolidation. Bar, 1 cm. (b) Columnar tumor cells with intracytoplasmic vacuoles reveal a papillary growth pattern. H&E stain, ×200. (c) Multiple mucin-producing tumor cells. Alcian blue stain, ×200. (d) Several tumor cells are positive for MUC 5AC. MUC 5AC immunostain, ×200.

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