Smoldering Systemic Mastocytosis is related to mastocytosis, cutaneous and systemic mastocytosis. An important gene associated with Smoldering Systemic Mastocytosis is KIT (KIT Proto-Oncogene, Receptor Tyrosine Kinase). The drugs Midostaurin and D-Tyrosine have been mentioned in the context of this disorder. Affiliated tissues include skin and bone marrow.