Elsevier

Ophthalmology

Volume 114, Issue 4, April 2007, Pages 774-779
Ophthalmology

Original Article
Genetic Study of Familial Uveal Melanoma: Association of Uveal and Cutaneous Melanoma with Cutaneous and Ocular Nevi

https://doi.org/10.1016/j.ophtha.2006.08.041Get rights and content

Purpose

To evaluate a kindred with familial uveal and cutaneous melanoma and to identify potential genetic and environmental factors that may predispose individuals to develop uveal melanoma.

Design

Family-based case report with detailed clinical and genetic evaluation.

Participants

Ten siblings in a single nuclear family.

Methods

Evaluation of a large sibship via family history, complete eye and skin examinations, environmental risk factor questionnaire, and genetic testing, as well as a MEDLINE search of familial uveal melanoma kindreds.

Main Outcome Measures

Cutaneous and ocular nevi, benign and malignant neoplasms of skin and other sites, brief skin cancer risk assessment tool risk classification for cutaneous melanoma, DNA sequencing of p16INK4a and p14ARF genes, and citations on familial uveal melanoma.

Results

The proband and his mother had uveal melanoma, 3 cutaneous melanomas occurred among 2 siblings, and 2 other siblings had basal cell carcinomas. No germline mutations were detected in the melanoma-associated tumor suppressor genes p16INK4a and p14ARF. Seven out of 10 siblings had a history of cutaneous and/or ocular nevi. Of the 3 subjects without nevi, 2 had histories of eye or skin malignancies (1 uveal melanoma, 1 basal cell carcinoma). Three of the 10 siblings had relevant ocular findings (2 choroidal nevi, 1 uveal melanoma). Six were also found to be in the “high-risk” classification for cutaneous malignancies based on scores from a previously validated risk assessment tool. This family, combined with the 91 previously reported familial uveal melanoma kindreds, brings to 92 the total number thus far recorded.

Conclusions

Our results strengthen the association between uveal melanoma, atypical nevi, and cutaneous melanoma. This relationship supports the recommendation that individuals with a personal or family history of uveal melanoma, particularly in combination with atypical nevi, should be regularly screened for uveal and cutaneous melanoma.

Section snippets

Materials and Methods

Approval by the Evanston Northwestern Healthcare Research Institute Institutional Review Board was obtained before beginning the study (protocol EH02-172), and informed consent was obtained from all subjects. This work is compliant with the Healthcare Insurance Portability and Accountability Act, and regulations regarding human subjects research were followed. The proband (FUM-10) and all 9 of his siblings participated in this study. The parents and most of their siblings were already deceased.

Family History Evaluation

A 57-year-old man (FUM-10) of Czech and English descent presented with advanced uveal melanoma in 1 eye. The eye was enucleated and melanoma was confirmed by pathologic examination of the tumor. He was employed as a software engineer for 20 years and subsequently worked in computer retail for 10 years. His medical history was otherwise unremarkable except for a congenital dislocated hip treated with multiple surgeries. Figure 1 illustrates the family pedigree. The patient’s family history was

Discussion

Among patients with uveal melanoma, only 0.6% have a family history of uveal melanoma.41 Our report brings to 92 the total number of familial uveal melanoma kindreds that have been reported thus far in the literature. Although rare, statistical analysis shows that the occurrence of uveal melanoma among first-degree relatives exceeds that expected by chance alone by a factor of over 200.4 Thus, the likelihood of a hereditary predisposition to uveal melanoma in this family is high. Furthermore,

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    Manuscript no. 2005-910.

    Supported by the Illinois Society for the Prevention of Blindness, Chicago, Illinois, and Myriad Genetic Laboratories, Inc., Salt Lake City, Utah.

    1

    Dr Rubinstein is on the Speaker’s Bureau of Myriad Genetic Laboratories.

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