Successful Control of Acute Myelofibrosis with Lenalidomide

Table 1

The basic characteristics that help in the differential diagnosis of APMF (acute panmyelosis with myelofibrosis), PMF (primary myelofibrosis), and the 5q-syndrome according to the recent WHO classification (2008).

	APMF	PMF	5q-
MGK increase	Prominent	Present	Present
JAK2V617F	No	Yes (50%)	No
Acute onset	Yes	No	No
Splenomegaly	No	Yes	No
Marrow Fibrosis	Yes	Yes	No
Pancytopenia	Yes	No	No