Combined Ruxolitinib and Venetoclax Treatment in a Patient with a BCR-JAK2 Rearranged Myeloid Neoplasm

Figure 3

Lymph node showing extensive extramedullary involvement by a myeloproliferative neoplasm with numerous megakaryocytes ((a) hematoxylin and eosin stain, 400x), no increase in blasts ((b) CD34 immunostain, 400x), or significant myeloid cells ((c) MPO immunostain, 400x) but with prominent erythroid precursors ((d) CD71 immunostain, 400x).

(a)

(b)

(c)

(d)