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CD7 (Pan T Cell / Early Myeloid Cell Marker)

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CD7 (Pan T Cell / Early Myeloid Cell Marker), in Visit Clinic

Measures CD7 on T cells and early myeloid cells to help identify immune cells and detect blood cancers in Visit Clinic.

Centre Visit

₹

SAMPLE TYPE

Blood

FASTING REQUIRED

GENDER

Male/Female

GET REPORTS IN

24 hours

TEST INCLUDED

20K+Customers

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What is a CD7 (Pan T Cell / Early Myeloid Cell Marker) Test in Visit Clinic?

The CD7 test measures the CD7 protein on T cells and some early myeloid cells. CD7 is a marker that helps identify specific immune cells in the blood or bone marrow. It is important for doctors to tell T cells from other blood cells. This test helps detect and monitor blood cancers such as T‑cell leukemias and lymphomas. It also helps evaluate immune system problems and follow treatment response. Doctors usually run it as part of immunophenotyping by flow cytometry. Results guide diagnosis, staging, and treatment decisions. The test is useful when blood counts are abnormal or when there are symptoms like swollen glands, unexplained fevers, or persistent fatigue.

CD7 (Pan T Cell / Early Myeloid Cell Marker) Test Preparation in Visit Clinic

No special preparation is required.

CD7 (Pan T Cell / Early Myeloid Cell Marker) Test Parameters in Visit Clinic

The CD7 (Pan T Cell / Early Myeloid Cell Marker) test evaluates various parameters. Here are the main parameters checked:

Single test

Why Take a CD7 (Pan T Cell / Early Myeloid Cell Marker) Test in Visit Clinic?

CD7 (Pan T Cell / Early Myeloid Cell Marker) is commonly included in flow cytometry panels for leukemia and lymphoma. Doctors order it when blood counts are abnormal, there are swollen lymph nodes, unexplained fevers, or persistent fatigue. It helps diagnose and monitor T‑cell leukemias, some lymphomas, and immune disorders. Abnormal results may come from malignancy, severe infection, or immune dysfunction, and family history of blood cancers can make testing more important.

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Frequently asked questions

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What is CD7 a marker for in Visit Clinic?

CD7 is a transmembrane glycoprotein expressed primarily on thymocytes, mature T lymphocytes and natural killer (NK) cells. It serves as an early T‑cell lineage marker in immunophenotyping and flow cytometry, useful for identifying normal T/NK populations and diagnosing T‑cell leukemias or lymphomas, where CD7 may be underexpressed or lost. It can aid prognosis and treatment decisions.

Is CD25 an early activation marker in Visit Clinic?

Yes. CD25 (the IL-2 receptor α chain) is widely used as an early activation marker: it is rapidly upregulated on activated T cells within hours, enabling high‑affinity IL‑2 signaling and proliferation. However, CD25 is constitutively high on regulatory T cells, so its presence alone doesn’t always indicate recent activation without additional markers or functional context.

What does CD7 positive mean in Visit Clinic?

CD7 positive means cells express the CD7 protein on their surface, a marker typically found on T lymphocytes and natural killer cells. In laboratory tests (flow cytometry or immunohistochemistry), CD7 positivity supports T‑cell lineage identification and helps diagnose or classify lymphoid disorders. Loss or abnormal CD7 expression can be clinically significant in certain T‑cell leukemias and lymphomas.

Is CD47 expressed on T cells in Visit Clinic?

Yes — CD47 is broadly expressed on T cells. It acts as a "self" or "don't‑eat‑me" signal via SIRPα on phagocytes and also influences T‑cell activation, migration, survival and homeostasis. CD47 is present on naïve T cells and is often upregulated after activation; interactions with thrombospondin‑1 and SIRPα modulate immune responses and phagocytic clearance.

What diseases are associated with CD7 in Visit Clinic?

CD7 is an early T‑cell surface marker; loss or abnormal expression is associated with T‑cell malignancies such as T‑cell acute lymphoblastic leukemia, peripheral T‑cell lymphoma, and cutaneous T‑cell lymphomas (mycosis fungoides and Sézary syndrome). Aberrant CD7 patterns are used diagnostically and for monitoring T‑cell lymphoproliferative disorders and can sometimes appear in reactive T‑cell conditions.

What CD markers indicate leukemia in Visit Clinic?

Immunophenotyping uses CD markers to classify leukemias. B‑cell ALL: CD19, CD10, CD22, CD79a, often CD34; T‑cell ALL: CD2, CD3, CD5, CD7 (±CD1a, CD4, CD8). AML: myeloid markers CD13, CD33, CD117, often CD34; monocytic AML shows CD14/CD64. CLL characteristically shows CD19+CD5+ with CD23 and weak surface immunoglobulin. Hairy cell leukemi

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