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JOURNAL ARTICLE
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
Primary cutaneous non-Hodgkin's lymphoma of Ann Arbor stage I: preferential cutaneous relapses but high cure rate with doxorubicin-based therapy.
Journal of Clinical Oncology 2001 January 16
PURPOSE: Establish frequency, presenting features, response and relapse patterns, and outcome of primary cutaneous non-Hodgkin's lymphoma (PCNHL).
PATIENTS AND METHODS: Review of untreated patients, older than 16 years, presenting between 1971 and 1993 with cutaneous lymphoma, not mycosis fungoides, and Ann Arbor stage I.
RESULTS: We identified 46 patients, 27 males, with median age of 57 years. Treatment was radiotherapy in 10 patients, doxorubicin-based therapy in 33 patients that was followed by radiotherapy in 25 patients, and other combination with radiotherapy in one patient. The complete response rate was 95%. After a median follow-up of 140 months (range, 61 to 284 months), 18 patients have relapsed, and 14 have died from lymphoma. The first failure was exclusively cutaneous in 50% of relapses. For the 44 treated patients, progression-free survival (PFS; actuarial +/- SE) was 61% +/- 7% and survival was 58% +/- 9% at 12 years. For the 18 patients with diffuse large B-cell lymphoma, after doxorubicin-based regimens, PFS was 71% +/- 12% (P = .0003) versus 0% after radiotherapy; survival was 77% +/- 12% versus 25% +/- 22% (P = 004), respectively. For the nine patients with follicular center-cell lymphoma treated with combined modality, the 12-year PFS was 89% +/- 11% and survival 70% +/- 18%.
CONCLUSION: PCNHL is rare, and its first relapse is exclusively cutaneous in 50% of patients. Patients with diffuse large B-cell lymphoma are curable with doxorubicin-based regimens but not with radiotherapy. Prospective studies in PCNHL should define the cytogenetics, the basis for cutaneous tropism, the prognosis of histologic subtypes, and the role of radiotherapy.
PATIENTS AND METHODS: Review of untreated patients, older than 16 years, presenting between 1971 and 1993 with cutaneous lymphoma, not mycosis fungoides, and Ann Arbor stage I.
RESULTS: We identified 46 patients, 27 males, with median age of 57 years. Treatment was radiotherapy in 10 patients, doxorubicin-based therapy in 33 patients that was followed by radiotherapy in 25 patients, and other combination with radiotherapy in one patient. The complete response rate was 95%. After a median follow-up of 140 months (range, 61 to 284 months), 18 patients have relapsed, and 14 have died from lymphoma. The first failure was exclusively cutaneous in 50% of relapses. For the 44 treated patients, progression-free survival (PFS; actuarial +/- SE) was 61% +/- 7% and survival was 58% +/- 9% at 12 years. For the 18 patients with diffuse large B-cell lymphoma, after doxorubicin-based regimens, PFS was 71% +/- 12% (P = .0003) versus 0% after radiotherapy; survival was 77% +/- 12% versus 25% +/- 22% (P = 004), respectively. For the nine patients with follicular center-cell lymphoma treated with combined modality, the 12-year PFS was 89% +/- 11% and survival 70% +/- 18%.
CONCLUSION: PCNHL is rare, and its first relapse is exclusively cutaneous in 50% of patients. Patients with diffuse large B-cell lymphoma are curable with doxorubicin-based regimens but not with radiotherapy. Prospective studies in PCNHL should define the cytogenetics, the basis for cutaneous tropism, the prognosis of histologic subtypes, and the role of radiotherapy.
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