Figure 2

Immunostaining of a formalin-fixed, paraffin-embedded BM biopsy from an ET patient with the mouse monoclonal antibody CAL2 (magnification: x50). The megakaryocytes are strongly labelled. CALR mutation was confirmed by Sanger sequencing.

Immunostaining of a formalin-fixed, paraffin-embedded BM biopsy from an ET patient with the mouse monoclonal antibody CAL2 (magnification: x50). The megakaryocytes are strongly labelled. CALR mutation was confirmed by Sanger sequencing.