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X.F.001 CD117 Immunostain for Mast Cells

X.F.001

CD117 immunostain for mast cells. Marrow section in patient with systemic mastocytosis. Mast cells react with a brown color reaction indicating presence of KIT.

X.F.002 Tryptase Stain for Mast Cells

X.F.002

Tryptase stain for mast cells. Marrow section in patient with systemic mastocytosis. Mast cells react with a brown color reaction indicating presence of tryptase.

X.F.003 CD1a and S100 Stain for Langerhans Cell Histiocytosis

X.F.003

CD1a and S100 stain for Langerhans cell histiocytosis. Composite image shows (A) characteristic H&E morphologic appearance with sheets of Langerhans histocytes showing nuclear grooves. A few eosinophils are noted. The Langerhans cells react with the immunohistochemical stain for (B) CD1a and (C) S100.

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