Journal Information
Vol. 109. Issue 10.
Pages 924-927 (December 2018)
Vol. 109. Issue 10.
Pages 924-927 (December 2018)
Case and Research Letters
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Narrowband UV-B Phototherapy in the Treatment of Generalized Hailey-Hailey Disease
Tratamiento de la enfermedad de Hailey-Hailey generalizada con fototerapia UVB de banda estrecha
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M.C. Abacaa,
Corresponding author
, L. Floresa,b, V. Parraa,b
a Servicio de Dermatología, Hospital Luis Lagomaggiore, Mendoza, Argentina
b Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
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To the Editor:

Hailey-Hailey disease (HHD) is an autosomal dominant genodermatosis caused by a mutation in the ATP2C1 gene. This gene encodes the hsPCA1 protein, which is responsible for calcium homeostasis. The mutation affects desmosome function, resulting in suprabasal acantholysis.1–3 Clinically, it presents with recurrent flares of erythematous and macerated plaques in intertriginous areas, sometimes accompanied by erosions, fissures, and vesicles.4 Lesion superinfection and a foul odor, which can compromise patient quality of life, are observed in some cases.3 Generalized forms are infrequent and can be triggered by infections or drugs.5,6 There are multiple available therapeutic options of variable efficacy.1,7 Here, we describe complete lesion disappearance following narrowband ultraviolet B (NBUVB) phototherapy in a patient with generalized HHD resistant to multiple therapeutic regimens.

The patient was a 41-year-old man with skin phototype III and a history of histologically confirmed HHD that began at age 28 with involvement of the neck, axillae, and groin.

He was seen for eroded and macerated erythematous plaques located in the skin folds. Over the preceding months the lesions, which caused mild pain and produced a foul odor, had spread to the trunk, upper extremities, and proximal thighs (Figs. 1 and 2).

Figure 1.

Macerated erythematous plaques.

(0.17MB).
Figure 2.

Involvement of the chest, face, and upper arms.

(0.14MB).

The lesions spread progressively despite treatment with 1% isoconazole and 2% mupirocin cream, 100mg minocycline every 12hours, and 150mg fluconazole per day for 7 days, in repeated cycles.

In the absence of a clinical response 3 weeks after starting treatment with prednisone (40mg/d), NBUVB phototherapy was added to the regimen. NBUVB irradiation was carried out using a Waldmann F85/100W-01 cabinet equipped with TL01 lamps. The patient underwent a total of 8 weekly sessions, starting at a dose of 300mJ/cm2 and increasing by 50mJ/cm2 per week. The maximum dose of 500mJ/cm2 was reached after the fifth session, and was maintained until the eighth week. The patient received a cumulative dose of 3500mJ/cm2. During each session he was positioned standing with the lower limbs in abduction and the upper limbs elevated above the level of the shoulders, thus allowing irradiation of the skin folds. No adverse effects were observed during treatment.

Four weeks after starting phototherapy a marked improvement was observed; the lesion extension decreased and the odor subsided. Consequently, the prednisone dose was progressively decreased at a rate of 5mg per week, and prednisone treatment was ultimately discontinued 1 month after cessation of phototherapy.

After completing the 8 phototherapy sessions the lesions resolved completely, leaving only residual hyperpigmentation (Fig. 3).

Figure 3.

Image showing lesion resolution in the axillary area after treatment with narrowband ultraviolet B (NBUVB) phototherapy.

(0.22MB).

Currently, the patient is being treated with 1% clotrimazole and 0.1% betamethasone cream once per day, and has not relapsed over 12 months of follow-up.

Conventional treatment of HHD consists of topical and oral corticosteroids, antibiotics and antifungals, and topical calcineurin inhibitors, combined with general measures.1 Typically, the therapeutic response is both temporary and partial. The use of methotrexate, cyclosporine, thalidomide, retinoids, dapsone, botulinum toxin, dermabrasion, CO2 laser, alexandrite, erbium-doped yttrium aluminum garnet laser, radiotherapy, ultraviolet B (UV-B) phototherapy, and surgical treatment has been described,1,3,8 and photodynamic therapy has been proposed for the treatment of refractory cases.9

In the case reported here, the patient presented with generalized HHD that responded poorly to corticosteroids in monotherapy, but responded well when NBUVB phototherapy was added to the treatment regimen. An improvement was observed 1 month after starting phototherapy and the lesions disappeared after 8 sessions over 2 months.

The use of NBUVB phototherapy for the treatment of HHD was first described in 1999 in a woman with psoriasis and concomitant HHD who was treated twice per week for 2 months with a suberythematogenic dose, to which she responded well.10 Mizuno and coworkers7 described the case of a woman with disseminated HHD who, after multiple treatment regimens without adequate response, underwent 8 sessions of NBUVB phototherapy using a similar regimen to that of our patient, and showed lesion improvement 2 weeks after completing treatment. The patient relapsed after treatment discontinuation, and once again showed a good response following its reintroduction. By contrast, our patient, who was treated for generalized HHD, showed no signs of recurrence up to 1 year after discontinuation of phototherapy. The lack of relapse over a long follow-up period may be because oral corticosteroid treatment had been initiated before NBUVB phototherapy began, and was continued, albeit at a lower dose, after completing the phototherapy regimen.

Classically, UV light is considered an aggravating factor of HDD because it stimulates production of proinflammatory cytokines, suppresses ATP2C1 mRNA expression, and promotes acantholysis. Conversely, UV-B phototherapy decreases the number of epidermal T lymphocytes and dendritic cells, thereby attenuating cutaneous inflammation. In our patient, and in other cases described in the literature, phototherapy resulted in clinical improvement, suggesting the involvement of other factors in cases in which lesions worsen.7,11

The present case is of particular interest because the patient in question had generalized HHD that responded poorly to conventional treatments but showed a good therapeutic response to NBUVB phototherapy. Based on these findings, we propose NBUVB phototherapy as a useful therapeutic alternative in patients with these characteristics.

Conflicts of Interest

The authors declare that they have no conflicts of interest.

Acknowledgments

The authors thank the patient for providing written consent to the publication of the images included in this letter.

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Please cite this article as: Abaca MC. Tratamiento de la enfermedad de Hailey-Hailey generalizada con fototerapia UVB de banda estrecha. Actas Dermosifiliogr. 2018;109:924–927.

Copyright © 2018. Elsevier España, S.L.U. and AEDV
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