Research Article of American Journal of Dermatological Research and Reviews
Micro-nevi in peri-tumoral skin of cutaneous melanoma and basal cell carcinoma
Denise Malki1, MD. Martin Andersson1, MD. Britta Krynitz1,2, MD, PhD. Bernt Lindelöf3,MD, PhD.
1Department of Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden;
2Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden;
3Department of Medicine, Dermatology and Venerology unit, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
Background: Harboring many melanocytic nevi is a risk factor for melanoma. The prevalence of micro-nevi, melanocytic nevi that can only be detected microscopically, has been studied scarcely and the significance is unknown.
Objectives: To systematically analyze the presence of micro-nevi in cutaneous excisions from cutaneous melanoma and basal cell carcinoma to achieve an insight in the density of micro-nevi per mm peri-tumoral skin. Also to speculate in the relevance and significance of micro-nevi for evolving melanoma at the same anatomical site.
Methods: We re-examined histologically peri-tumoral skin of primary and re-excised melanomas and primary excisions of basal cell carcinomas for comparison. The size of a micro-nevus was defined to a diameter < 2 mm, of either a junctional, compound or intradermal nevus.
Results: 104 melanoma and 208 basal cell carcinoma cases were microscopically re-examined. In the melanoma group 6 micro-nevi were found. The sum of the peri-tumoral skin was 1768 mm, giving a density of 1 nevus per 295 mm. In the basal cell carcinoma group 5 micro-nevi were found. The sum of the peri-tumoral skin was 1370 mm, giving a density of 1 nevus per 274 mm. No difference in the density of micro-nevi in the two groups of skin cancer was found.
Conclusions: The significance of these micro-nevi remains unclear. The aim with this study is to draw attention to the existence of micro-nevi and further studies are needed to determine the significance of the presence of micro-nevi.
Keywords: Basal cell carcinoma, histopathology, malignant melanoma, melanocytic nevus
How to cite this article:
Denise Malki, Martin Andersson, Britta Krynitz, Bernt Lindelöf. Micro-nevi in peri-tumoral skin of cutaneous melanoma and basal cell carcinoma. American Journal of Dermatological Research and Reviews, 2023, 6:56. DOI: 10.28933/ajodrr-2022-11-1005dm
References:
1. Bauer J, Garbe C. Acquired Melanocytic Nevi as Risk Factor for Melanoma Development. A Comprehensive Review of Epidemiological Data. Pigment Cell Res. 2003;16:297–306.
2. Gallagher RP, McLean DI. The epidemiology of acquired melanocytic nevi. A Brief Review. Dermatol Clin.1995;13(3):595-603.
3. Dadzie OE, Goerig R, Bhawan J. Incidental Microscopic Foci of Nevic Aggregates in Skin. Am J Dermatopathol. 2008;30(1):45-50
4. Gallagher RP, McLean DI, Yang CP et al. Anatomica distribution of acquired melanocytic nevi in white children. A comparison with melanoma: the Vancouver Mole Study. Arch Dermatol. 1990;126(4):466-71.
5. Richmond-Sinclair NM, Van der Pols JC, Green AC. Melanocytic naevi and basal cell carcinoma: is there an association? J Eur Acad Dermatol Venereol 2012;26(9):1092–6.
6. Bulliard JL. Site-specific risk of cutaneous malignant melanoma and pattern of Sun exposure in New Zealand. Int J Cancer 2000;85(5):627-632.
7. Richmond-Sinclair NM, Pandeya N. Ware, RS et al. Incidence of Basal Cell Carcinoma Multiplicity and Detailed Anatomic Distribution: Longitudinal Study of an Australian Population. J Invest Dermatol 2009;129: 323-328
8. Cohen PR, Calame A. Multiple Skin Neoplasms at One Site (MUSK IN A NEST): A Comprehensive Review of Basal Cell Carcinoma and Benign or Malignant “Collision” Tumors at the Same Cutaneous Location. Clin Cosmet Invest Dermatol 2020;13:731-741.
9. Rodvall Y, Wahlgren CF, Wiklund K. Future reduction of cutaneous malignant melanoma due to improved sun protection habits and decreased common melanocytic nevi density among Swedish children?: A follow-up from 2002 to 2012. Eur J Cancer 2019;118:149-155.
10. Bautista N C, Cohen S, Anders KH. Benign melanocytic nevus cells in axillary lymph nodes. A prospective incidence and immunohistochemical study with literature review. Am J Clin Pathol. 1994;102(1):102–108.
11. González-Farre M, Ronen S, Keiser E et al. Three Types of Nodal Melanocytic Nevi in Sentinel Lymph Nodes of Patients With Melanoma: Pitfalls, Immunohistochemistry, and a Review of the Literature. Am J Dermatopathol.2020;42(10):739-7
Terms of Use/Privacy Policy/ Disclaimer/ Other Policies:
You agree that by using our site/services, you have read, understood, and agreed to be bound by all of our terms of use/privacy policy/ disclaimer/ other policies (click here for details).
CC BY 4.0
This work and its PDF file(s) are licensed under a Creative Commons Attribution 4.0 International License.