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  • Title: The prognosis of early mycosis fungoides is not influenced by phenotype and T-cell clonality.
    Author: Massone C, Crisman G, Kerl H, Cerroni L.
    Journal: Br J Dermatol; 2008 Sep; 159(4):881-6. PubMed ID: 18644018.
    Abstract:
    BACKGROUND: The influence of phenotype and detection of clonality on prognosis in early mycosis fungoides has never been addressed in large studies. OBJECTIVES: To correlate immunophenotype and detection of clonality with clinical outcome. METHODS: We analysed 73 biopsy specimens from 68 patients with early mycosis fungoides (stage Ia or Ib) and at least 10 years of follow up (or dead of disease). RESULTS: Four phenotypic groups could be identified: group A (alpha/beta+ CD4+ CD8- TIA1-), 51 patients; median survival time 160 months; group B (alpha/beta+ CD4- CD8+ TIA1+), 10 patients; median survival time 195 months; group C (alpha/beta- CD4- CD8+/- TIA1+), five patients; median survival time 165 months; and group D (alpha/beta+ CD4- CD8- TIA1-), two patients; median survival time 130 months. Survival curves did not show statistical differences among the groups. Monoclonality was detected in 36 of 67 tested biopsies (54%), and statistical analyses did not show prognostic differences between the clonal and nonclonal cases. CONCLUSIONS: We conclude that cytotoxic phenotype and detection of monoclonal T-cell receptor-gamma gene rearrangement in early lesions of mycosis fungoides do not have any prognostic significance.
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