The prevalent dermoscopic criterion to distinguish between benign and suspicious pink tumours

T. Russo, R. Pampena, V. Piccolo, R. Alfano, C. Papageorgiou, Z. Apalla, C. Longo, A. Lallas, G. Argenziano

Research output: Contribution to journalArticlepeer-review


Background: Pink skin tumours are difficult to differentiate, clinically and dermoscopically. In previous studies, mainly focused on pigmented lesions, pattern analysis provided the best sensitivity and specificity values, as compared to other algorithms. These findings suggest that the global dermoscopic appearance, based on the evaluation of prevalent features, could represent a valuable and practical approach even when dealing with pink lesions. Objective: In this study, we aimed to evaluate the diagnostic accuracy of a new dermoscopic approach for pink tumours based on the prevalent criterion, as compared to a standard diagnostic method (Menzies algorithm). Methods: The databases of two referral centres were retrospectively evaluated to retrieve dermoscopic images of amelanotic/hypomelanotic skin lesions. Two experts in dermoscopy, blinded for the final diagnosis and for clinical and demographic information, evaluated separately dermoscopic pictures of 1000 lesions according to the Menzies score and to the prevalent criterion method. Results: According to the high sensitivity model of the Menzies score, 129 (12.9%) lesions were considered as non-suspicious (of which 16 were false negative) and 871 (87.1%) as suspicious (of which 212 were false positive), with 97.6% sensitivity and 34.8% specificity. According to the high specificity model, 370 (37%) lesions were evaluated as non-suspicious (of which 105 were false negative) and 630 (63%) as suspicious (of which 60 were false positive), with 84.4% sensitivity and 81.5% specificity. Concerning the prevalent criterion method, 316 (31.6%) lesions were evaluated as non-suspicious (of which 46 were false negative) and 684 (68.4) as suspicious (of which 55 were false positive), with 93.2% sensitivity and 83.1% specificity. Conclusions: This study demonstrated that focusing on the prevalent dermoscopic features could allow to detect malignant pink tumours with similar sensitivity but higher specificity than using the conventional Menzies scoring system.

Original languageEnglish
Pages (from-to)1886-1891
Number of pages6
JournalJournal of the European Academy of Dermatology and Venereology
Issue number10
Publication statusPublished - Oct 1 2019

ASJC Scopus subject areas

  • Dermatology
  • Infectious Diseases


Dive into the research topics of 'The prevalent dermoscopic criterion to distinguish between benign and suspicious pink tumours'. Together they form a unique fingerprint.

Cite this