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J Ovarian Res ; 12(1): 50, 2019 May 25.
Article in English | MEDLINE | ID: mdl-31128592

ABSTRACT

INTRODUCTION: The management of Serous Tubal Intraepithelial Carcinoma (STIC) found at the time of Risk-Reducing Salpingo-Oophorectomy (RRSO) remains unclear. We set out to analyse the incidence of peritoneal carcinomas developed after prophylactic surgery and to formulate further guidance for these patients. METHODS: This is a retrospective study of 300 consecutive RRSO performed at the Royal Marsden Hospital between January 2008 and January 2017. RESULTS: The median age at RRSO was 47.8 years (range 34 to 60 years) and median BMI was 26.2 kg/m2 (range 16 to 51 kg/m2). A total of 273 patients (91%) were tested for BRCA mutations. Of these, 124 (45.4%) had a BRCA 1 mutation, 118 (43.2%) had a BRCA 2 mutation, 2 (0.7%) had both a BRCA 1 and a BRCA 2 mutation and 29 (10.6%) had no BRCA mutation detected. Isolated STIC lesions were identified in 7 cases (2.3%) and p53 signatures in 75 cases (25%). There were five (1.6%) incidental tubal carcinomas and one (0.3%) ovarian carcinoma at the time of surgery. Two (28.6%) of the 7 patients with STIC identified following RRSO had high grade serous peritoneal carcinoma diagnosed at 53 and 75 months. One (0.3%) patient from the other 287 patients from our series with no STIC diagnosis or incidental carcinomas at RRSO developed high grade serous carcinoma of peritoneal origin after 92 months. CONCLUSION: This study demonstrates that when a STIC lesion is identified following RRSO there is a significantly higher risk of a subsequent peritoneal cancer. Although there is no published consensus in literature, we recommend that consideration should be given for long term follow-up if a STIC lesion is identified at RRSO.


Subject(s)
Cystadenocarcinoma, Serous/epidemiology , Cystadenocarcinoma, Serous/secondary , Fallopian Tube Neoplasms/pathology , Fallopian Tube Neoplasms/surgery , Peritoneal Neoplasms/epidemiology , Peritoneal Neoplasms/secondary , Adult , BRCA1 Protein/genetics , BRCA2 Protein/genetics , Cystadenocarcinoma, Serous/genetics , Cystadenocarcinoma, Serous/prevention & control , Fallopian Tube Neoplasms/genetics , Female , Humans , Incidence , Middle Aged , Mutation , Ovariectomy , Peritoneal Neoplasms/genetics , Peritoneal Neoplasms/prevention & control , Prophylactic Surgical Procedures , Retrospective Studies , Salpingectomy
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