Peculiarities in the Diagnosis Approach of MDS /MPN-U Patients.

The most recent WHO Classification of Tumors of Haematopoietic and Lymphoid Tissues describes a set of diseases framed as the MDS / MPN (myelodysplastic / chronic myeloproliferative syndromes). There are four subtypes comprised in this category: chronic myelomonocytic leukemia, juvenile myelomonocytic leukemia, atypical chronic myeloid leukemia and unclassifiable MDS / MPN. They combine both myelodysplastic and myeloproliferative features.