abnormal alpha-beta intraepithelial T cell morphology +
abnormal alpha-beta T cell number +
abnormal CD4-positive, alpha beta T cell morphology +
abnormal CD8-positive, alpha beta T cell morphology +
abnormal double-positive T cell morphology +
abnormal effector T cell number +
abnormal NK T cell morphology +
any structural anomaly of the distinct lineage of T cells expressing natural killer cell markers and having T cell receptors characterized by the usage of a restricted repertoire of variable region gene segments