[Unusual progression of polycythemia vera]. / Ungewöhnliche Progression einer Polycythaemia vera.

ABSTRACT

The case of a male patient with newly diagnosed polycythemia vera showing rare and unusually rapid progression with phenotypic change towards chronic myelomonocytic leukemia is presented. The case report illustrates remarkably rapid disease progression including a structural change in usually indolent polycythemia vera and highlights the prognostic relevance of enhanced molecular genetic testing.