What is the medical term meaning condition in which any of the blood components are abnormal in some way?

The general term for pathologic changes to circulating blood cells is blood dyscrasia. Some of the categories would be morphologic changes to the cells (such as sickle cell animal, microcytosis, etc.), increased numbers of immature blood cells (such as seen in regenerative anemai), gross nuclear changes (usually indicative of neoplastic changes) and inappropriate cell numbers (either too high or too low).