<unk>  is diagnosed when the complete blood count shows a lymphocyte count lower than the age-appropriate reference interval (for example, below 1.0 x 10(9)/L in an adult).
Lymphocytopenia
Monocytopenia
Thrombocytopenia
Lymphocytosis
Cytopenia
Monocytosis
Neutropenia
Reticulocytopenia