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Mucin staining of the hepatic tumor (A-D) and the lung tumor (E-H). PAS staining shows mucin production by the hepatic tumor (A) and the lung tumor (E). Both the hepatic tumor and the lung tumor show negativity for MUC2 (B, F) and focal positivity for MUC5Ac (C, G) and MUC6 (D, H).
