BACKGROUND: Basal cell carcinomas (BCCs) can be diagnosed using different dermoscopic modalities. OBJECTIVE: To evaluate dermoscopic features of BCCs using nonpolarized and polarized dermoscopy to highlight similarities and differences between dermoscopic modalities. MATERIALS AND METHODS: Retrospective study of 149 BCCs under nonpolarized dermoscopy (NPD), polarized contact dermoscopy (PCD), and polarized noncontact dermoscopy (PNCD). Images were evaluated for a range of dermoscopic colors, structures, and vessels. Features were compared according to histopathologic subtype. RESULTS: The most common dermoscopic structures in BCCs across all modalities included globules (50.3-51.0%), dots (49.7-50.3%), white structureless areas (63.1-74.5%), structureless gray-brown areas (24.2-24.8%), and ulcerations (28.2%). The most frequently observed vasculature included arborizing vessels (18.8-38.3%), short fine telangiectasias (SFTs) (73.8-82.6%), and vascular blush (41.6-83.2%). Structures with higher levels of agreement across modalities included pigmented structures and ulcerations. Lower levels of agreement existed between contact and noncontact modalities for certain vascular features. White shiny structures, which include shiny white lines (chrysalis and crystalline structures) (0-69.1%), shiny white areas (0-25.5%), and rosettes (0-11.4%), exhibited no agreement between NPD and polarized modalities. CONCLUSIONS: This study highlights differences in dermoscopic features of BCCs under three dermoscopic modalities. Shiny white lines (chrysalis and crystalline structures) and shiny white areas may be used as additional criteria to diagnose BCCs.
BACKGROUND:Basal cell carcinomas (BCCs) can be diagnosed using different dermoscopic modalities. OBJECTIVE: To evaluate dermoscopic features of BCCs using nonpolarized and polarized dermoscopy to highlight similarities and differences between dermoscopic modalities. MATERIALS AND METHODS: Retrospective study of 149 BCCs under nonpolarized dermoscopy (NPD), polarized contact dermoscopy (PCD), and polarized noncontact dermoscopy (PNCD). Images were evaluated for a range of dermoscopic colors, structures, and vessels. Features were compared according to histopathologic subtype. RESULTS: The most common dermoscopic structures in BCCs across all modalities included globules (50.3-51.0%), dots (49.7-50.3%), white structureless areas (63.1-74.5%), structureless gray-brown areas (24.2-24.8%), and ulcerations (28.2%). The most frequently observed vasculature included arborizing vessels (18.8-38.3%), short fine telangiectasias (SFTs) (73.8-82.6%), and vascular blush (41.6-83.2%). Structures with higher levels of agreement across modalities included pigmented structures and ulcerations. Lower levels of agreement existed between contact and noncontact modalities for certain vascular features. White shiny structures, which include shiny white lines (chrysalis and crystalline structures) (0-69.1%), shiny white areas (0-25.5%), and rosettes (0-11.4%), exhibited no agreement between NPD and polarized modalities. CONCLUSIONS: This study highlights differences in dermoscopic features of BCCs under three dermoscopic modalities. Shiny white lines (chrysalis and crystalline structures) and shiny white areas may be used as additional criteria to diagnose BCCs.
Authors: J Pérez-Anker; S Ribero; O Yélamos; A García-Herrera; L Alos; B Alejo; M Combalia; D Moreno-Ramírez; J Malvehy; S Puig Journal: Br J Dermatol Date: 2019-10-27 Impact factor: 9.302
Authors: Harald Kittler; Ashfaq A Marghoob; Giuseppe Argenziano; Cristina Carrera; Clara Curiel-Lewandrowski; Rainer Hofmann-Wellenhof; Josep Malvehy; Scott Menzies; Susana Puig; Harold Rabinovitz; Wilhelm Stolz; Toshiaki Saida; H Peter Soyer; Eliot Siegel; William V Stoecker; Alon Scope; Masaru Tanaka; Luc Thomas; Philipp Tschandl; Iris Zalaudek; Allan Halpern Journal: J Am Acad Dermatol Date: 2016-02-17 Impact factor: 11.527
Authors: Cristián Navarrete-Dechent; Shirin Bajaj; Michael A Marchetti; Harold Rabinovitz; Stephen W Dusza; Ashfaq A Marghoob Journal: JAMA Dermatol Date: 2016-05-01 Impact factor: 10.282
Authors: John Paoli; Johan Dahlén Gyllencreutz; Julia Fougelberg; Eva Johansson Backman; Maja Modin; Sam Polesie; Oscar Zaar Journal: Dermatol Pract Concept Date: 2019-04-30
Authors: Ofer Reiter; Ilit Mimouni; Stephen Dusza; Allan C Halpern; Yael Anne Leshem; Ashfaq A Marghoob Journal: J Am Acad Dermatol Date: 2019-11-07 Impact factor: 15.487