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Morphology and immunophenotyping images of tissue from the patients with pulmonary MalT lymphoma. A, Abnormal lymphocyte infiltration, HE staining, original magnification × 100; B‐E, Immunohistochemical staining for CD20 (B); CD79a (C); CK7 (D); and Ki‐67 (E) expression. Original magnification 100×. F, MALT‐1 gene rearrangements using FISH
