Anaplastic large cell lymphoma natural history, complications and prognosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Prognosis

Those with ALK positivity have a better prognosis. It is possible that ALK-negative anaplastic large cell lymphomas represent other T-cell lymphomas that are morphologic mimics of ALCL in a final common pathway of disease progression. It is possible that existing systems of classification will be revised in the future to exclude such lymphomas from this specific diagnosis.

  • Overall better prognosis than other "Aggressive Lymphomas"
    • ALK+ 5-year survival 70-80%
    • ALK- 5-year survival 30-40%

ALK positive anaplastic large cell lymphoma affects primarily young (between 10 and 29 years), male patients[1] and accounts for 3% of all NHL, 40% of all large cell lymphomas[2] and 10%-20% of childhood lymphomas.[3]

According to a study on 1,320 cases of peripheral T-cell lymphomas and NK cell lymphomas between 1990 and 2002 in 22 different centers, ALK-Positive ALCL is the fifth most common type of peripheral T cell lymphoma (6.6% of total patients).[4] In the United states, ALK-Positive ALCL is the most frequent type of peripheral T-cell lymphoma.

References

  1. Stein H, Foss HD, Dürkop H, Marafioti T, Delsol G, Pulford K; et al. (2000). "CD30(+) anaplastic large cell lymphoma: a review of its histopathologic, genetic, and clinical features". Blood. 96 (12): 3681–95. PMID 11090048.
  2. "ALK+ Lymphoma: Clinico-Pathological Findings and Outcome".
  3. "ALK+ Lymphoma: Clinico-Pathological Findings and Outcome".
  4. "International Peripheral T-Cell and Natural Killer/T-Cell Lymphoma Study: Pathology Findings and Clinical Outcomes" (PDF).

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