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WHO Classification of Tumours
Systemic mastocytosis with associated clonal haematological non-mast-cell lineage disease
Tumours of haematopoietic and lymphoid tissues


Definition

Systemic mastocytosis with associated clonal haematological non-mast cell lineage disease (SMAHNMD) meets the criteria for systemic mastocytosis (SM) and criteria for an associated, clonal haematological non-mast cell lineage disorder, AHNMD (MDS, MPN, AML, lymphoma, or other haematological neoplasm that meets the criteria for a distinct entity in the WHO classification).