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Histopathological examination results (A) Infiltrating tumoral cells in hyalinized collagenous stroma (H&E × 100) (B) Tumoral cells with spindle, triangular or polygonal shaped and hypercromatic nuclei (H&E × 400) (C) Diffuse positivity with cytokeratin (Clone AE1-AE3 × 200) (D) Scant cytoplasmic positivity with thrombomudulin (Clone 1009 × 200).
