Adult T-cell leukemia laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]; Grammar Reviewer: Natalie Harpenau, B.S.[3]

Overview

Laboratory findings consistent with the diagnosis of adult T-cell leukemia include abnormal anemia, thrombocytopenia, and elevated lymphocyte count. Hypercalcemia is a key feature among patients with adult T-cell leukemia.

Laboratory Findings

The following laboratory abnormalities may be observed in patients suffering from adult T-cell leukemia:[1][2][3]

Complete Blood Count

Basic Metabolic Panel

Peripheral Smear

  • Characteristic leukemia cells with sharp nuclear indentations and a prominent nucleoli
  • "Cloverleaf" or "flower" cells

Antibody Titres

Immunohistochemistry

  • Adult T-cell leukemia cells are typically CD2, CD4, CD5, and CD8 positive.

References

  1. Matutes E (2007) Adult T-cell leukaemia/lymphoma. J Clin Pathol 60 (12):1373-7. DOI:10.1136/jcp.2007.052456 PMID: 18042693
  2. Shimoyama M (1991). "Diagnostic criteria and classification of clinical subtypes of adult T-cell leukaemia-lymphoma. A report from the Lymphoma Study Group (1984-87)". Br J Haematol. 79 (3): 428–37. PMID 1751370.
  3. Mahieux R, Gessain A (2007). "Adult T-cell leukemia/lymphoma and HTLV-1". Curr Hematol Malig Rep. 2 (4): 257–64. doi:10.1007/s11899-007-0035-x. PMID 20425378.

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