» Articles » PMID: 29924249

Hereditary Melanoma: a Five-year Study of Brazilian Patients in a Cancer Referral Center - Phenotypic Characteristics of Probands and Pathological Features of Primary Tumors

Overview
Specialty Dermatology
Date 2018 Jun 21
PMID 29924249
Citations 3
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Approximately five to 10% of all melanomas occur in families with hereditary predisposition and the main high-risk melanoma susceptibility gene is the CDKN2A.

Objectives: To describe, after a five-years study, the clinical data of patients (probands) from familial melanoma kindreds, and the pathological characteristics of their melanoma.

Methods: The inclusion criteria were melanoma patients with a family history of melanoma or pancreatic cancer (first- or second-degree relatives) or patients with multiple primary melanomas (MPM).

Results: A total of 124 probands were studied, where 64 were considered familial cases and 60 MPM. Mean age at diagnosis was 50 years. Our results show that the following characteristics were prevalent: skin phototype I/II (89.5%), sunburn during childhood (85.5%), total number of nevi ≥50 (56.5%), Breslow thickness ≤1.0mm (70.2%), tumors located on the trunk (53.2%) and superficial spreading melanomas (70.2%).

Study Limitations: Analyses of probands' relatives will be demonstrated in future publication.

Conclusions: Our findings are in agreement with previous familial melanomas reports. Fifteen new melanomas in 11 patients were diagnosed during follow up, all of which were ≤1.0 mm. This is the largest dataset of Brazilian melanoma prone kindreds to date, thus providing a complete database for future genetic studies.

Citing Articles

Familial Melanoma Phenotype With Xeroderma Pigmentosum Group C (XP-C) Genotype - The Putative Role of MC1R Polymorphism as Modifier.

Leidenz F, Bittencourt F, Braga W, de Sa Araujo E, Gomes C, Bernardes V Dermatol Pract Concept. 2024; 14(1).

PMID: 38364385 PMC: 10868875. DOI: 10.5826/dpc.1401a50.


Study on Early Onset Melanoma and Germ-Line Mutation in CDKN2A among Patients in Imam Khomeini Hospital Complex.

Ferdosi S, Saffari M, Alishahi R, Ghanadan A, Shirkohi R Asian Pac J Cancer Prev. 2021; 22(10):3347-3353.

PMID: 34711012 PMC: 8858231. DOI: 10.31557/APJCP.2021.22.10.3347.


Imaging of pediatric cutaneous melanoma.

Kaste S Pediatr Radiol. 2019; 49(11):1476-1487.

PMID: 31620848 PMC: 6986774. DOI: 10.1007/s00247-019-04374-9.

References
1.
Nagore E, Botella-Estrada R, Garcia-Casado Z, Requena C, Serra-Guillen C, Llombart B . Comparison between familial and sporadic cutaneous melanoma in Valencia, Spain. J Eur Acad Dermatol Venereol. 2008; 22(8):931-6. DOI: 10.1111/j.1468-3083.2008.02682.x. View

2.
Puig S, Potrony M, Cuellar F, Puig-Butille J, Carrera C, Aguilera P . Characterization of individuals at high risk of developing melanoma in Latin America: bases for genetic counseling in melanoma. Genet Med. 2015; 18(7):727-36. PMC: 4940430. DOI: 10.1038/gim.2015.160. View

3.
Garbe C, Buttner P, Weiss J, Soyer H, Stocker U, Kruger S . Associated factors in the prevalence of more than 50 common melanocytic nevi, atypical melanocytic nevi, and actinic lentigines: multicenter case-control study of the Central Malignant Melanoma Registry of the German Dermatological Society. J Invest Dermatol. 1994; 102(5):700-5. DOI: 10.1111/1523-1747.ep12374298. View

4.
Vasen H, Gruis N, Frants R, van der Velden P, Hille E, Bergman W . Risk of developing pancreatic cancer in families with familial atypical multiple mole melanoma associated with a specific 19 deletion of p16 (p16-Leiden). Int J Cancer. 2000; 87(6):809-11. View

5.
McLean D, Gallagher R . "Sunburn" freckles, café-au-lait macules, and other pigmented lesions of schoolchildren: the Vancouver Mole Study. J Am Acad Dermatol. 1995; 32(4):565-70. DOI: 10.1016/0190-9622(95)90338-0. View