Idiopathic myelofibrosis in children: primary myelofibrosis, essential thrombocythemia, or transient process?

We report 3 pediatric cases of primary/idiopathic myelofibrosis (PMF/IMF). Two cases exhibited clinical courses not typically observed in adult patients in whom this process is much more common. One of these cases exhibited spontaneous clinical and bone marrow resolution, whereas the other case achi