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Open Access Validity of ABCD Rule of Dermoscopy in Clinical Practice

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The ABCD rule of dermoscopy was developed to facilitate the dermoscopic differentiation between benign and malignant melanocytic lesions. However, there is a lack of studies on its validity in clinical practice. The aim of this study was to evaluate the accuracy of the algorithm used bedside, compared with the accuracy of the preliminary preoperative diagnosis, and to rate physicians' level of confidence in the diagnosis. Melanocytic tumours were preoperatively scored bedside, according to the ABCD algorithm; 309 cases (46 melanomas and 263 naevi) were included. A sensitivity of 83% and specificity of 45% were found for the ABCD algorithm. A comparable sensitivity (74%), but a significantly higher specificity (91%), was found for the preliminary diagnosis. Interestingly, there was a considerable percentage (19.6%) of early melanomas for which a malignant diagnosis was not preoperatively expected, indicating that it is important to maintain generous indications for excision or to practise short-term follow-up of ambiguous lesions in order to detect early melanomas.

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Keywords: ALGORITHMS; DERMOSCOPY; DYSPLASTIC NAEVUS; MELANOMA; MELANOMA IN SITU; NAEVUS

Document Type: Research Article

Publication date: March 1, 2016

More about this publication?
  • Acta Dermato-Venereologica is a bi-monthly international peer-reviewed journal for clinical and experimental research in the field of dermatology and venereology.

    It was founded in 1920 by Johan Almqvist and edited during 1936-1969 by Sven Hellerström. Since 1970, the journal has been published for the Society for the Publication of Acta Dermato-Venereologica on a non-profit basis.

    Acta Dermato-Venereologica publishes high-quality manuscripts in English dealing with new observations on basic dermatological and venereological research, as well as clinical investigations. Each volume also features a number of review articles in special areas, as well as short Letters to the Editor to stimulate debate and to disseminate important clinical observations. Acta Dermato-Venereologica has rapid publication times and is amply illustrated with a large number of colour photographs to enhance understanding.

    Acta Dermato-Venereologica covers inter alia:

    • ~ Atopic dermatitis and contact allergy
    • ~ Facial dermatoses and adnexal disorders
    • ~ New treatments
    • ~ Psoriasis and genodermatoses
    • ~ Psychodermatology
    • ~ Sexually transmitted diseases
    • ~ Skin biology and inflammation
    • ~ Skin cancer and pigmentation
    • ~ Skin immunology and lymphoma
    • ~ Urticaria and itch

    Extensive papers, proceedings from congresses and symposia are printed as supplements to the journal. Announcements concerning pertinent dermatological meetings and books received are also published.
    Readership: Doctors and scientists interested in dermatology, skin biology and venereology.

    Acta Dermato-Venereologica has an impact factor of 3.007.

    Issues between 1998 up to 2005 can be found at http://www.medicaljournals.se/acta/content

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