Search our Database of Scientific Publications and Authors

I’m looking for a
    Clinicopathologic study of solar dermatitis, a pinpoint papular variant of polymorphous light eruption in Taiwan, and review of the literature.
    J Formos Med Assoc 2013 Mar 29;112(3):125-30. Epub 2012 Jun 29.
    Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
    Background/purpose: A mild, micropapular eruption previously coined as "solar dermatitis" on the extensor of the forearm is a common form of photodermatitis in Taiwan. This study aimed to investigate the clinicopathologic findings of "solar dermatitis", the micropapular type of photodermatitis.

    Methods: We characterized the features of this photodermatitis by retrospectively reviewing and analyzing all such cases in a medical center in Southern Taiwan diagnosed during October 1988 to November 2010.

    Results: A total of 34 Taiwanese patients, all with Fitzpatrick skin type III-IV, were included (M:F = 1:1; mean age = 33.5 years; range = 9-62 years). Patients typically presented numerous, monomorphous, pinhead-sized micropapules on the extensor of the forearm after a recent, more intense sun exposure. The rash was often mildly pruritic and recurred in the summer, but usually resolved in a few days after sun protection and topical corticosteroid treatment. Reduced minimal erythema dose to UVB was noted in 2 of the 5 patients tested. Histopathologic examination (n = 10) revealed a mild spongiotic dermatitis.

    Conclusion: The clinicopathologic findings of the "solar dermatitis" closely resembled those of the pinpoint papular variant of polymorphous light eruption (PP-PMLE) affecting African Americans and Asians in Singapore. PP-PMLE, micropapular light eruption in Japanese, summertime actinic lichenoid eruption in Indians and the present photodermatitis might represent a common, micropapular variant of PMLE affecting darker skin populations.

    Similar Publications

    Polymorphous light eruption presenting as pinhead papular eruption on the face.
    J Drugs Dermatol 2013 Nov;12(11):1285-6
    Polymorphic light eruption (PMLE) is the most common of the immunologically mediated photodermatoses. Onset is typically within the first three decades of life and affects females two to three times more than males. It occurs 30 minutes to 1-3 days after sun exposure and usually resolves in 7 to 10 days. Read More
    Polymorphous light eruption in African Americans: pinpoint papular variant.
    Photodermatol Photoimmunol Photomed 2002 Dec;18(6):303-6
    Department of Dermatology, Henry Ford Health System, Detroit, MI 48202, USA.
    Background: Polymorphous light eruption (PMLE) is the most common chronic idiopathic photodermatosis usually manifesting as a papular eruption (3-6 mm), with several other morphological variants described.

    Methods: Between June 1998 and August 2001, nine patients presented with complaints of a pruritic pinpoint papular eruption associated with sun exposure. A detailed history and complete skin examination were performed along with a skin biopsy if active lesions were present. Read More
    Pinpoint papular polymorphous light eruption in Asian skin: a variant in darker-skinned individuals.
    Photodermatol Photoimmunol Photomed 2009 Apr;25(2):71-4
    National Skin Centre, Singapore.
    Background: Polymorphous light eruption (PMLE) is the most common idiopathic but probably immunologic photodermatosis and has wide morphological variants.

    Methods: The photobiological features of all patients diagnosed with the pinpoint papular variant of PMLE at a tertiary dermatology centre in Singapore over a five-year period were retrospectively examined.

    Results: Twenty-one patients were reviewed from 2003 to 2007. Read More
    A clinical study of the spectrum of photodermatoses in dark-skinned populations.
    Clin Exp Dermatol 2013 Dec 13;38(8):823-9. Epub 2013 Jun 13.
    Department of Dermatology and Venereology, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
    Background: Photodermatoses are characterized by an abnormal cutaneous response to 'ordinary' light exposure.

    Aim: To study the spectrum of photodermatoses in populations with dark skin (skin types IV-VI) at a tertiary referral centre.

    Methods: Consecutive patients with skin lesions confined to or predominantly located on photoexposed parts of the body and/or with photosensitivity were enrolled in the study, and their clinical details were recorded. Read More