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  Table of Contents  
LETTER TO THE EDITOR
Year : 2016  |  Volume : 7  |  Issue : 3  |  Page : 211-212  

Diclofenac gel may be a new treatment option for seborrheic keratosis


1 Department of Dermatology, Karabük University, Karabük, Turkey
2 Department of Dermatology, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey

Date of Web Publication13-May-2016

Correspondence Address:
Can Ergin
Dışkapı Yıldırım Beyazıt Eğitim ve Araştırma Hastanesi, Dışkapı, Ankara
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5178.182363

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How to cite this article:
Aktas H, Ergin C, Keseroglu HO. Diclofenac gel may be a new treatment option for seborrheic keratosis. Indian Dermatol Online J 2016;7:211-2

How to cite this URL:
Aktas H, Ergin C, Keseroglu HO. Diclofenac gel may be a new treatment option for seborrheic keratosis. Indian Dermatol Online J [serial online] 2016 [cited 2019 Oct 14];7:211-2. Available from: http://www.idoj.in/text.asp?2016/7/3/211/182363

Sir,

A 73-year-old man presented with a plaque lesion on the nose of three years duration. No prominent change has occured on the lesion for a long time. On examination, a brown, waxy surfaced, sharply circumscribed plaque lesion on the left side of the nose near the medial epicanthus was observed [Figure 1]a. Milia-like cysts and comedo-like openings were also observed on dermoscopy. The lesion was asymptomatic. The patient was diagnosed as seborrheic keratosis (SebK) on clinical findings and dermoscopy. He refused cryotherapy or surgical resection and requested topical treatment. Diclofenac gel was started twice a day. The lesion was completely cleared after one month [Figure 1]b.
Figure 1: (a) Seborrheic keratosis lesion on the nose. (b) Disappearence of the lesion after the treatment with diclofenac gel (arrows)

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SebK is one of the most common benign epidermal tumors. The lesions are usually removed for cosmetic reasons. The most commonly used treatment methods for SebK are cryosurgery with liquid nitrogen and curettage. Topical drugs such as tazarotene, dobesilate, calcipotriene, ammonium lactate, and imiquimod are the other therapeutic options for SebK.[1],[2],[3],[4]

Diclofenac gel is a nonsteroidal anti-inflammatory drug that is used to treat actinic keratosis. It inhibits the cyclooxygenase pathway and decrease prostaglandin E2 (PGE2) synthesis. The drug is generally applied twice a day for 2-3 months. The complete clearance rate for actinic keratosis was 47% at 3 months follow up.[5] We herein present a case of SebK succesfully treated with diclofenac gel 3%. The lesion was completely cleared after the application of diclofenac gel twice a day for one month. The pathogenesis of SebK are not clearly understood. Diclofenac is an anti-inflammatory agent.[5] Although we failed to explain the mechanism of action of diclofenac on SebK lesions, this is the first such case reported. We believe that, diclofenac deserves to be investigated further as a treatment option for SebK.

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Conflicts of interest

There are no conflicts of interest.

 
   References Top

1.
Herron MD, Bowen AR, Krueger GG. Seborrheic keratoses: A study comparing the standard cryosurgery with topical calcipotriene, topical tazarotene, and topical imiquimod. Int J Dermatol 2004;43:300-2.  Back to cited text no. 1
    
2.
Cuevas P, Angulo J, Salgüero I, Giménez-Gallego G. Clearance of seborrhoeic keratoses with topical dobesilate. BMJ Case Rep 2012;2012. pii: bcr0120125628.  Back to cited text no. 2
    
3.
Asagami C, Muto M, Hirota T, Shimizu T, Hamamoto Y. Anti-tumor effects of 1,25-dihydroxyvitamin D3 (1,25(OH) 2D3) in seborrheic keratosis. J Investig Dermatol Symp Proc 1996;1:94-6.  Back to cited text no. 3
    
4.
Klaus MV, Wehr RF, Rogers RS 3rd, Russell TJ, Krochmal L. Evaluation of ammonium lactate in the treatment of seborrheic keratoses. J Am Acad Dermatol 1990;22:199-203.  Back to cited text no. 4
    
5.
Dréno B, Amici JM, Basset-Seguin N, Cribier B, Claudel JP, Richard MA; AKTeam™. Management of actinic keratosis: A practical report and treatment algorithm from AKTeam™ expert clinicians. J Eur Acad Dermatol Venereol 2014;28:1141-9.  Back to cited text no. 5
    


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