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J Eur Acad Dermatol Venereol. 2006 Aug;20(7):804-9.

Narrowband UVB phototherapy for early-stage mycosis fungoides: evaluation of clinical and histopathological changes.

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  • 1Dermatology Clinic, Sisli Etfal Research and Training Hospital, Istanbul, Turkey. goncagokdemir@hotmail.com

Abstract

BACKGROUND:

Early-stage (IA, IB, IIA) mycosis fungoides (MF) has long been treated with various agents including topical potent steroids, nitrogen mustard, carmustine, oral psoralen plus UVA (PUVA), broadband UVB, electron-beam radiotherapy, interferon-alpha and retinoids. However, each of these modalities is associated with various side-effects. Narrowband UVB (NB-UVB) therapy has the same effect but is safer to use than the other methods.

OBJECTIVE:

Our purpose in this prospective study was to determine the effects of NB-UVB in early-stage MF both clinically and histopathologically.

MATERIALS AND METHODS:

Twenty-three patients (20 men, three women, aged 27-78 years) with clinically and histologically confirmed MF were enrolled. Patients received NB-UVB therapy three times a week. Clinical and histological responses, cumulative doses, total number of treatments, side-effects and duration of remission period were noted.

RESULTS:

Six patients had stage IA MF, 15 patients stage IB and two patients stage IIA. Eighteen patients had patch stage and five patients had plaque stage histopathologically. All of the patients in the patch group had a complete response (CR). In the plaque group, three patients (60%) had a CR and two (40%) had partial (PR) or no clinical response (NR). The clinical response between patch and plaque groups was statistically significant. Regarding the histopathological findings, 17 (94.4%) had complete clearing and only one (5.6%) patient had a partial improvement in the patch group. In the plaque group, one (20%) patient had complete clearing and four (80%) patients had partial or no improvement. The difference between the two groups was statistically significant. In the patch group, the mean cumulative dose was 90.15 J/cm(2) and the mean number of treatments was 35.33. In the plaque group, the mean cumulative dose was 90.67 J/cm(2) and the mean total number of treatments was 39.40. The differences were not statistically significant, either between the mean cumulative dose or the mean number of treatments. The mean duration of follow-up was 10.87 months (range 1-25 months). Only one of the patients had a relapse.

CONCLUSIONS:

NB-UVB therapy for patients with early-stage MF is an effective and safe treatment with the effect lasting for months. We suggest that clinical clearance correlates with histological improvement except for patients in the plaque stage.

PMID:
16898902
[PubMed - indexed for MEDLINE]
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