The true incidence and prevalence of<unk>  is unknown, but<unk>  generally has been considered to be an "orphan disease"; orphan diseases affect 200,000 or fewer people in the United States.<unk> , however, often may be misdiagnosed, as it typically occurs secondary to another condition, and thus may occur more frequently than assumed.
Mastocytosis
Monocytosis
Plasmacytosis
Lymphocytosis
Neutropenia
Macrocytosis
Neuroacanthocytosis
Neutrophilia