A case of aleukemic mast cell leukemia with an underlying myeloproliferative neoplasm: Morphological and molecular characteristics of a highly aggressive disease. Issue 12 (17th April 2020) - Loscocco, Giuseppe G.; Mannelli, Francesco; Mannelli, Lara; Vergoni, Federica; Gesullo, Francesca; Rotunno, Giada; Guglielmelli, Paola; Vannucchi, Alessandro M.