label: Smoldering Systemic Mastocytosis with an Associated Myeloid Neoplasm
label_lc: smoldering systemic mastocytosis with an associated myeloid neoplasm
description: Smoldering systemic mastocytosis associated with the presence of a clonal non-mast cell myeloid neoplasm (e.g., myelodysplastic syndrome,  myeloproliferative neoplasm, and acute myeloid leukemia).