part_of part of phenotype affects entity CD8-positive, alpha-beta T cell Abnormal T cell subset distribution Abnormal CD8+ T cell proportion 2017-09-02T17:06:06Z Abnormal increase or decrease of cytotoxic CD3+CD8+ T cells, measured as percentage of total CD3+ T cells in the blood, compared to a reference range for a given sex and age-group. These are usually measured within the TCR alpha/beta positive population. Abnormal proportion of CD8+ T cells Abnormal proportion of CD8-positive T cells Abnormal proportion of CD8-positive, alpha-beta T cells blood proportion of CD8-positive, alpha-beta T cell relative to T cell in blood phenotype