JOURNAL ARTICLE
REVIEW

Increased risk of breast cancer in neurofibromatosis type 1: current insights

Sacha J Howell, Kimberley Hockenhull, Zena Salih, D Gareth Evans
Breast Cancer: Targets and Therapy 2017, 9: 531-536
28860858
Neurofibromatosis type 1 (NF1) is an autosomal dominant condition caused by mutation/deletion of the NF1 gene. The gene product, neurofibromin, is a tumor suppressor which represses the activity of the Ras oncogene. Central nervous system (CNS) tumors have long been associated with NF1, but their association with several other malignancies has been demonstrated. In this review, we summarize the epidemiological data that irrefutably support a link between NF1 and an increased risk of early-onset breast cancer, to levels at which annual mammography is currently recommended in national high-risk screening programs. We discuss the reasons for the observed adverse breast cancer prognosis in NF1 cases, including late presentation and more aggressive tumor subtypes, and recommend that a collaborative breast screening study be initiated to better serve this currently underserved population of women.

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