Transient T‑cell lymphopenia means a temporary fall in the number of T lymphocytes (the white blood cells that coordinate and direct immune responses) in the ...

CD8-predominant lymphopenia is a type of lymphopenia where the CD8+ T-cell subset falls below normal levels while other lymphocyte populations remain ...

Isolated CD4 lymphopenia—also called idiopathic CD4 lymphocytopenia (ICL)—is a rare immune condition in which a person has abnormally low levels of CD4⁺ ...

Secondary B‑cell lymphopenia is a condition in which your body has too few B lymphocytes (a type of white blood cell) because of another illness or treatment. ...

Primary B‑cell lymphopenia is a rare inherited immunodeficiency in which a person’s body cannot make enough B lymphocytes—white blood cells responsible for ...

B‑cell lymphopenia occurs when the number of B cells in the blood drops below the normal range, typically fewer than 100–500 cells per microliter in adults. ...

T‑cell lymphopenia means a person has too few T lymphocytes (T cells) in the blood and often in lymphoid tissues. T cells are white blood cells that coordinate ...

Combined B‑ and T‑Cell Lymphopenia is an immunodeficiency in which both B lymphocytes (responsible for antibody production) and T lymphocytes (responsible for ...

Selective B‑cell lymphopenia means the number of B lymphocytes (B cells) in the blood is lower than normal, while other white blood cell types (like many T ...

Selective T‑cell lymphopenia means a person has too few T lymphocytes (T cells) in the blood and tissues, while other white cells may be normal or less ...

Lymphopenia means your blood has fewer lymphocytes than normal. Lymphocytes are white blood cells that run your immune system—mainly T cells, B cells, and NK ...

Acute lymphopenia means your lymphocyte count drops suddenly below the normal range, usually because of a short‑term illness, drug effect, or stress response. ...

Lymphopenia means your blood has too few lymphocytes, which are the white blood cells that run much of your immune system. The main lymphocyte types are T ...

Lymphocytopenia (also called lymphopenia) means your blood has too few lymphocytes, the white blood cells that drive immune defense (T cells, B cells, and ...

Transient lymphocytopenia is a temporary drop in the number of lymphocytes—key white blood cells that help fight infections—in your bloodstream. Clinically, ...

Secondary (acquired) lymphocytopenia is a condition in which the number of lymphocytes—white blood cells essential for adaptive immunity—falls below normal ...

Primary (inherited) lymphocytopenia means a person is born with a genetic change that leads to too few lymphocytes—the white blood cells (T cells, B cells, and ...

Natural killer (NK) cells are a type of white blood cell that patrols the body, identifying and destroying virus‑infected cells and tumor cells. When NK cells ...

B‑cell lymphocytopenia means the number of B lymphocytes (B cells) in the blood is lower than normal for a person’s age. B cells are a type of white blood cell ...

T‑cell lymphocytopenia means the body has too few T lymphocytes (T cells) in the blood. T cells are white blood cells that coordinate the immune system and ...