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Figure 1: Epithelioid mesothelioma. (a) CECT thorax shows loss of lung volume on the left side with thickened nodular pleura. (b and c) Polygonal cells infiltrating fibroadipose tissue (H and E; ×100 and ×400). ((d-g) WT1, calretinin, D2-40, and CK5/6 showing positivity in the tumor cells (polyHRP; ×400). (h-j) Tumor cells negative for TTF1, napsin, and CEA (polyHRP; ×400)

Figure 1: Epithelioid mesothelioma. (a) CECT thorax shows loss of lung volume on the left side with thickened nodular pleura. (b and c) Polygonal cells infiltrating fibroadipose tissue (H and E; ×100 and ×400). ((d-g) WT1, calretinin, D2-40, and CK5/6 showing positivity in the tumor cells (polyHRP; ×400). (h-j) Tumor cells negative for TTF1, napsin, and CEA (polyHRP; ×400)