Journal List > J Korean Surg Soc > v.76(6) > 1010974

Kim, Son, Sin, and Chang: Bilateral Metachronous Breast Cancer in Neurofibromatosis Type 1

Abstract

Neurofibromatosis type 1 (NF1) is an autosomal dominant disease, characterized by café-au-lait spot, axillary and inguinal freckle, peripheral neurofibroma and pigmented iris hamartoma. The various cancer incidences are increased in the NF1. But NF1 with breast cancer is rare. In this report we present a case of a 46?year?old NF1 female with a bilateral metachronous breast cancer. The patient has no BRCA2 mutation, but there are two unclassified variants in the exon 11 of BRCA1. The possibility of LOH of BRCA1 gene in the cancer tissue cannot be excluded.

Figures and Tables

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Fig. 1
Pedigree of neurofibromatosis type 1. The older sister, father and grandmother are neurofibromatosis type 1. The arrow indicates the patient.

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Fig. 2
The chest and abdomen of patient. Small nodules less than 1 cm are scattered across the entire skin surface. Café-au-lait spots are shown in the right lower and left lower abdomen.

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Fig. 3
The direct sequencing result of exon 11 of BRCA1. The left graph was an unclassified variant of 3232A>G, resulted in Glutamic acid to Glycine change at codon 1,038 (E1038G). The right graph was an unclassified variant of 3667A>G, resulted in Lysine to Arginine change at codon 1,183 (K1183R).

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