T-Cells Absent, T-Cell Receptor Signaling Defective and Natural Killer Cells and B-Cells Normal

**Semantic type:** Laboratory or Test Result

**Definition:** A hematology test result indicating that a subject has a normal amount of B-cells and natural killer cells but T-cells are absent or found at abnormally low amounts and a defect in T-cell receptor signaling pathways has been observed.

**Synonyms:** - T-B+NK+ Defective TCR Signaling - T-B+NK+ with Defective TCR Signaling - T-Lymphocytes Absent, T-Cell Receptor Signaling Defective and Normal Natural Killer Cells and B-Lymphocytes