1. Increased incidence of visceral metastases in scottish patients with BRCA1/2-defective ovarian cancer: an extension of the ovarian BRCAness phenotype.
- Author
-
Gourley C, Michie CO, Roxburgh P, Yap TA, Harden S, Paul J, Ragupathy K, Todd R, Petty R, Reed N, Hayward RL, Mitchell P, Rye T, Schellens JH, Lubinski J, Carmichael J, Kaye SB, Mackean M, and Ferguson M
- Subjects
- Adrenal Gland Neoplasms genetics, Adrenal Gland Neoplasms secondary, Adult, Aged, Aged, 80 and over, Brain Neoplasms genetics, Brain Neoplasms secondary, Female, Genetic Predisposition to Disease, Humans, Incidence, Liver Neoplasms genetics, Liver Neoplasms secondary, Lung Neoplasms genetics, Lung Neoplasms secondary, Middle Aged, Neoplasm Metastasis, Pancreatic Neoplasms genetics, Pancreatic Neoplasms secondary, Phenotype, Scotland, Splenic Neoplasms genetics, Splenic Neoplasms secondary, Genes, BRCA1, Genes, BRCA2, Germ-Line Mutation, Ovarian Neoplasms genetics, Ovarian Neoplasms pathology
- Abstract
Purpose: To compare the frequency of visceral relapse of BRCA1/2-deficient ovarian cancer to that of nonhereditary controls., Patients and Methods: All patients diagnosed in Scotland with epithelial ovarian cancer (EOC) or primary peritoneal cancer (PPC) and a germline BRCA1/2 mutation were identified. Those with previous malignancy were excluded. Each remaining patient who experienced relapse was matched with two nonhereditary controls., Results: Seventy-nine patients with EOC/PPC and germline BRCA1/2 mutations were identified. Fifteen had inadequate clinical data, two had carcinosarcoma, 27 had previous breast cancer, and 16 were in remission. Of the remaining 19 patients who were BRCA1/2 deficient, 14 patients (74%) developed visceral metastases compared with six (16%) of 38 patients in the control group. The percentages of liver, lung, and splenic metastases were 53%, 32%, and 32%, respectively, in the patients compared with 5%, 3%, and 5%, respectively, in the controls. When events occurring outside the matched follow-up period were omitted, the percentages of visceral, liver, lung, and splenic metastases were 58%, 42%, 16%, and 32% in the patients compared with 5%, 0%, 0%, and 3% in controls (P < .001, P < .001, P = .066, and P = .011, respectively). In an independent validation set, the corresponding percentages of visceral, liver, lung, and splenic metastases were 63%, 46%, 13%, and 17% in the patients compared with 11%, 4%, 2%, and 2% in controls (P < .001, P < .001, P = .153, and P = .052, respectively)., Conclusion: Although sporadic EOC commonly remains confined to the peritoneum, BRCA1/2-deficient ovarian cancer frequently metastasizes to viscera. These data extend the ovarian BRCAness phenotype, imply BRCA1/2-deficient ovarian cancer is biologically distinct, and suggest that patients with visceral metastases should be considered for BRCA1/2 sequencing.
- Published
- 2010
- Full Text
- View/download PDF