Clinical‑dermoscopic similarities between atypical nevi and early stage melanoma

Jitian (Mihulecea),Cristina‑Raluca; Frățilă,Simona; Rotaru,Maria

doi:10.3892/etm.2021.10286

Clinical‑dermoscopic similarities between atypical nevi and early stage melanoma

Authors:
- Cristina‑Raluca Jitian (Mihulecea)
- Simona Frățilă
- Maria Rotaru
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Affiliations: Dermatology Clinic, Emergency Clinical County Hospital of Sibiu, 550245 Sibiu, Romania, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
Published online on: June 9, 2021 https://doi.org/10.3892/etm.2021.10286
Article Number: 854
Copyright: © Jitian (Mihulecea) et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Atypical (Clark) nevi are benign tumors that may be considered precursors of melanoma. Many studies acknowledge a linear progression from typical to atypical nevi that eventually transform into melanoma. It is often challenging to differentiate a Clark nevus from melanoma, especially in its early stages, due to their clinical, dermoscopic, and histological resemblance. Dermoscopy is a powerful tool in early melanoma diagnosis, but it is a subjective method of examination. Therefore, the use of dermoscopic algorithms and checklists can overcome this issue. In the case of a difficult diagnosis, since both dermoscopy and histopathological exam are subjective methods of examination, modern molecular biology techniques can be used to distinguish between benign and malignant tumors. This study aimed to test the accuracy of specific clinical and dermoscopic criteria in order to distinguish between benign and malignant tumors, with a secondary objective to provide an overview of the clinical and dermoscopic features of atypical nevi and melanoma. In the present study, dermoscopic algorithms did not necessarily help distinguish benign and malignant tumors but demonstrated that nevi and melanoma have similar characteristics.

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