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A, Computed tomography (CT) scan of the abdomen showing the splenic mass. B, Bone marrow biopsy revealing myelofibrosis grade 1‐2 (silver impregnation stain; original magnification ×400). C, Gross appearance and the cut surface of the resected spleen showing clear delineation between the tumorous and non‐tumorous parts. D, Histopathology of the tumorous part of the spleen showing markedly increased numbers of megakaryocytes with nuclear atypia (HE stain; original magnification ×400)
