Case Reports in Hematology / 2015 / Article / Fig 1

Case Report

Promyelocytic Leukemia with No Retinoic Acid Receptor Alpha Abnormality but with RUNX1T1 Insertion to Chromosome 7q: A Classification and Management Dilemma

Figure 1

Initial core biopsy touch imprints. (a) Wright-Giemsa stained blood-dilute touch imprints; note the packed marrow on the left side. (b) Hemorrhagic necrosis on right side of this H&E stained section. (c) Immunoperoxidase staining of core biopsy for CD33; areas not taking the stain represent necrotic marrow. (d) Immunoperoxidase staining for Myeloperoxidase of a section from core biopsy.

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