atypical production of or inability to produce the subset of T lymphocytes that carry the CD4 marker, recognize intravesicular peptides bound to MHC class-II molecules, and turn on antibody production
abnormal CD4-positive, alpha-beta intraepithelial T cell morphology
abnormal CD4-positive, alpha-beta memory T cell morphology +
abnormal CD4-positive, alpha-beta T cell number +
abnormal CD4-positive, CD25-positive, alpha-beta regulatory T cell morphology +
abnormal CD8-positive, alpha-beta T cell differentiation