International Dermoscopy Society (IDS) criteria for skin tumors: validation for skin of color through a Delphi expert consensus by the “Imaging in Skin of Color” IDS Task Force

Balachandra S  Ankad; Biswanath Behera; Aimilios Lallas; Bengu Nisa  Akay; Yasmeen J Bhat; Payal Chauhan; Nkechi Anne Enechukwu; Shamir Geller; Abhijeet Kumar Jha; Feroze Kaliyadan; Kayitesi  Kayitenkore; Awatef  Kelati; Keshavamurthy  Vinay; Jennifer  Stein; Ibrahima  Traoré; Richard P Usatine; Enzo Errichetti

doi:10.5826/dpc.1301a67

International Dermoscopy Society (IDS) criteria for skin tumors: validation for skin of color through a Delphi expert consensus by the “Imaging in Skin of Color” IDS Task Force

Authors

Balachandra S Ankad Department of Dermatology, Venereology and Leprosy, SN Medical College, Bagalkot, Karna-taka, India
Biswanath Behera Department of Dermatology and Venereology, AIIMS, Bhubaneswar, India
Aimilios Lallas First Department of Dermatology, School of Medicine, Faculty of Health Sciences, Aristotle Univer-sity, Thessaloniki, Greece
Bengu Nisa Akay Department of Dermatology, School of Medicine, Ankara Universi-ty, Ankara, Turkey
Yasmeen J Bhat Department of Dermatology, Venereology and Leprology, Government Medical College, University of Kashmir, Srinagar, Jammu and Kashmir, India
Payal Chauhan Department of Dermatology, All India Institute of Medical Sciences (AIIMS), Bilaspur, Himachal Pradesh, India
Nkechi Anne Enechukwu Nnamdi Azikiwe University/Nnamdi Azikiwe Teaching Hospital Nnewi, Anambra State, Nigeria
Shamir Geller Division of Dermatology, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
Abhijeet Kumar Jha Department of Dermatology & STD, Patna Medical College & Hospital, Patna, India
Feroze Kaliyadan Department of Dermatology, Sree Narayana Insti-tute of Medical Sciences, Ernakulum, India
Kayitesi Kayitenkore University of Rwanda, Kigali, Rwanda
Awatef Kelati Dermatology Department, Cheikh Khalifa International University Hospital, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
Keshavamurthy Vinay Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
Jennifer Stein The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
Ibrahima Traoré Dermatological clinic, Conakry, Guinea
Richard P Usatine Department of Dermatology and Cutaneous Surgery, Department of Family and Community Medicine, University of Texas Health San Antonio, San Antonio, TX, USA
Enzo Errichetti Institute of Dermatology, “Santa Maria della Misericordia” University Hospital, Udine, Italy

Keywords:

dermoscopy, noeplasias, neoplastic dermatoses, skin of color, tumors

Abstract

Introduction: A structured set of eight basic dermoscopic parameters (lines, clods, dots, circles, pseudopods, structureless, else, and vessels) including a total of 77 variables with corresponding descriptive and metaphoric vocabulary has been released for evaluation of skin tumors by the International Dermoscopy Society (IDS).

Objectives: To validate the aforementioned criteria for the use in darker phototypes (phototypes IV-VI) via an expert consensus.

Methods: The two-round “Delphi method” was adopted, with an iterative process including two rounds of email questionnaires. Potential panelists were asked to take part to the procedure via email on the basis of their expertise on dermoscopy of skin tumors in dark phototypes.

Results: A total of 17 participants were involved. All the original variables of the eight basic parameters reached agreement during the first round, except for “pink small clods” (“milky red globules”) and “structureless pink zone” (“milky red areas”). Moreover, during the first round, panelists proposed a change of three existing items and the introduction of four new items, i.e., “black, small clods” (“black globules”), “follicular plugs”, “erosions/ulcerations”, and “white color around vessels” (“perivascular white halo”). All such proposals achieved agreement, thus being included in the final list, for a total of 79 items. There was consistency between descriptive and metaphoric approach in terms of scoring.

Conclusions: Albeit most of the original items were considered applicable even for skin of color, there are some points of differences that physicians need to know. No significant preference was found between descriptive and metaphoric terminology among panelists.

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