Organ Systems, Bone Marrow, WHO Classification Therapy-Related Myeloid Neoplasms October 10, 2017 peferguson Immunohistochemistry in Therapy-Related Myeloid Neoplasms CD34 Usually Positive CD56 Often Positive CD7 Variably Positive Cases often will express other myeloid markers. There is a lot of heterogeneity within this group. Share this: Share on X (Opens in new window) X Share on WhatsApp (Opens in new window) WhatsApp Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on LinkedIn (Opens in new window) LinkedIn Related