Genetic contribution to all cancers: the first demonstration using the model of breast cancers from Poland stratified by age at diagnosis and tumour pathology

10540 Background: BRCA1-associated tumors are known to have less favorable pathological characteristics, but there is little information on whether this is also reflected in the stage at diagnosis. Methods: Clinical and pathological information was collected on 1,122 consecutive Ashkenazi Jewish breast cancer patients who were tested post-diagnosis for the BRCA1/2 mutations common in this population. Results: Of 1,122 patients, 70 (6.2%) were BRCA1 and 50 (4.5%) were BRCA2 carriers. Mean age at diagnosis was 49.9 yrs. in BRCA1 carriers (p=.0001 vs. non-carriers (NC)) vs. 52.0 yrs. in BRCA2 carriers (p=.02 vs. NC) and 56.0 yrs. in NC. Pure DCIS was less common in BRCA1 carriers (3%) than in BRCA2 carriers (8.2%) and NC (11.8%) (p=.03). Medullary carcinoma was more common in BRCA1 (9.8%) and BRCA2 carriers (6.7%) than in NC (1.5%) (p<.001). Invasive lobular carcinomas were rarer in BRCA1 (1.6%) and BRCA2 (2.2%) compared to NC (8.8%) (p=.012). Hormone receptors (HR) negative was more common in BRCA1 (62%) compared to BRCA2 carriers (21%) (p=.00006) and NC (17%) (p<0.0001). Triple negative tumors (HR and HER2 negative) were more common in BRCA1 carriers (60%) than in BRCA2 carriers (14%) and NC (8.3%) (p=0.001). High grade was more common in BRCA1 (60.4%) and BRCA2 (51.4%) carriers than in NC (36.7%, p=.001). Less favorable pathological features and younger age at diagnosis in BRCA1 carriers were reflected in a more advanced stage at diagnosis. Stage I at diagnosis was found in 34% of BRCA1 carriers (p=.05 vs. NC), 43% of BRCA2 carriers and 46% of NC, stage II in 48% of BRCA1 carriers, 41% of BRCA2 carriers and 37% of NC, and stage III in 17% of BRCA1 carriers, 13.5% of BRCA2 carriers and 13.5% of non-carriers. Conclusions: This consecutive cohort study demonstrates that breast cancers in BRCA1 carriers are characterized by more aggressive pathological features and are diagnosed at more advanced stages than in BRCA2 carriers and non-carriers. This may suggest a differential approach for prevention and surveillance in BRCA1 compared to BRCA2 carriers. No significant financial relationships to disclose.

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Smoking and increased breast cancer risk in younger women in Appalachian Kentucky.

Journal of Clinical Oncology ◽

10.1200/jco.2012.30.15_suppl.e11097 ◽

2012 ◽

Vol 30 (15_suppl) ◽

pp. e11097-e11097

Author(s):

Indraneel Reddy ◽

Anjali Shankar ◽

Priya Mallikarjun ◽

Nicola Jabbour ◽

Mark Dignan

Keyword(s):

Breast Cancer ◽

Smoking Status ◽

Adult Population ◽

Current Smoker ◽

The State ◽

Age At Diagnosis ◽

Breast Cancers ◽

Exact Test ◽

Cancer Data ◽

Appalachian Kentucky

e11097 Background: Smoking rates in Kentucky are among the highest in the US. Data from the Centers for Disease Control and Prevention for 2011 showed that in Kentucky 25.2% of the adult population are current smokers compared to 18.4% nationwide. In addition, smoking rates in the Appalachian region are substantially higher than the state rate. Breast cancer rates are also elevated in Appalachian Kentucky, with data from the Kentucky State Cancer Registry for 2004-2008 showing an incidence rate of 67.3 per 100,000 in Appalachia compared to 65.6 per 100,000 for the state. Our objective was to evaluate the association of smoking and breast cancer among women in Appalachian Kentucky. Methods: We reviewed all the breast cancer data from a large community hospital serving the Appalachian areas of Kentucky. Data were collected from the hospital tumor registry for the period 1996-2005 and included demographic characteristics and smoking status, in addition to information about the breast cancer. No personal identifiers were collected. Breast cancers were coded as invasive or non-invasive and smoking status was coded as current smoker, non-smoker or unknown. Results: Data from records of 392 patients were included in the analyses. Over 90% of the breast cancers in the 392 were invasive. Age at diagnosis ranged from 24 to 92 and the mean was 59.9 years (standard deviation= 13.5. 21.2% of the records indicated a family history of breast cancer. Of the 392 patients, 162 (41.3%) were smokers. Analysis of the data by age at diagnosis showed that of the 120 women diagnosed with breast cancer at age less than 65, 46.5% were smokers, compared to 31.3% of those age 65 or older (p=.005, Fisher’s Exact Test). Conclusions: The risk of breast cancer in women under age 65 appears to be associated with smoking in this population. Additional research is needed to more fully explore this association.

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Breast cancer subtypes in Chinese Americans: A study from the Mount Sinai Health System.

Journal of Clinical Oncology ◽

10.1200/jco.2014.32.26_suppl.39 ◽

2014 ◽

Vol 32 (26_suppl) ◽

pp. 39-39

Author(s):

Camila Masias ◽

Theresa H. Shao

Keyword(s):

Breast Cancer ◽

Lymph Node ◽

Chinese Americans ◽

Breast Cancer Subtypes ◽

Age At Diagnosis ◽

Chinese Patients ◽

Breast Cancers ◽

Cancer Subtypes ◽

Her2 Breast Cancer ◽

Mount Sinai

39 Background: Breast cancer has been increasing in many Asian countries, as well as among Asian Americans. While many studies have examined breast cancer subtypes in African American and Caucasian populations, few have looked at tumor subtypes in the Asian population. We aimed to examine breast cancer subtypes in Chinese Americans. Methods: We identified all Chinese patients diagnosed with invasive breast cancers between 2005 and 2012 from the Cancer Registry of Mount Sinai Beth Israel, Mount Sinai St. Luke’s, and Roosevelt Hospitals. The following clinical data were collected for each patient: age at diagnosis, year of diagnosis, largest tumor size (cm), lymph node status, estrogen receptor (ER), progesterone receptor (PR) and HER2 status. Based on ER, PR, and HER2, patients were categorized into three molecular subtypes: 1) Hormone receptor (HR)+ (ER and/or PR positive, HER2 negative), HER2+ and triple negative (TN) (ER, PR, and HER2 negative). Descriptive variables were analyzed using one-way Anova test. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated from logistic regression models. Results: There were 175 Chinese patients diagnosed with invasive breast cancers from 2005 to 2012. Median age at diagnosis was 54 (range 27-90). One hundred fourteen (65%) were HR+, 41 (23%) were HER2+, and 20 (11%) were TN. There were 59 (34%) patients diagnosed at age ≤ 50 and twelve patients (7%) were diagnosed at age < 40. There were more HER2+ and TN breast cancers diagnosed in women age ≤ 50 compared to age > 50, but the difference was not statistically significant. Women in the HR+ group were diagnosed at an older age compared to the other two subgroups (57 ± 12, 52 ± 8, and 52 ± 10 for HR+, HER2+, and TN, respectively, p = 0.036). Patients with TN breast cancers were more likely to have lymph node involvement compared to HR+ or HER2+ patients (p = 0.02). There was a trend of increasing prevalence of HER2+ breast cancer observed in recent years: 18.5% in 2005-2006, 23.8% in 2007-2008, 18.4% in 2009-2010, and 29.8% in 2011-2012. Conclusions: We observed a high proportion of breast cancer among young Chinese Americans as well as an increasing prevalence of HER2+ breast cancer in this population in recent years. Further studies are warranted.

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Breast cancer recurrence rate in patients treated for early breast cancer.

Journal of Clinical Oncology ◽

10.1200/jco.2020.38.15_suppl.e12508 ◽

2020 ◽

Vol 38 (15_suppl) ◽

pp. e12508-e12508

Author(s):

Cecilia Munguti ◽

Miriam Claire Mutebi ◽

Mukuhi Ng'ang'a ◽

Ronald Wasike

Keyword(s):

Breast Cancer ◽

Risk Factors ◽

Recurrence Rate ◽

Early Breast Cancer ◽

Cancer Recurrence ◽

Age At Diagnosis ◽

Breast Cancer Recurrence ◽

Breast Cancers ◽

Breast Examination ◽

The Mean

e12508 Background: Recurrence rates for early breast cancer vary in different studies from 7% to 18%. Recurrent breast cancer is associated with poorer outcome and higher mortality rates. The recurrence rate in the Kenyan population remains unknown despite high prevalence of known risk factors. Methods: Single institution retrospective study of all women (18 -75 years) treated for early breast cancer at a single center private tertiary unit from 2009 to 2017. Results: 239 patient records were reviewed. The mean age at diagnosis was 51 (SD13.1). 98% of women presented with a palpable breast lesion. The molecular sub-type’s prevalence was: ER/PR+ (76%), triple negative (12.1%), HER2+ (2.9%). The overall recurrence rate was 7.2%, 66% recurrences were loco-regional, while 27% were metastatic disease, with 61% of the recurrences being detected initially on clinical/ self-breast examination. 77% of the recurrences were in women with ER/PR+ molecular sub-types. Recurrences in women with DCIS (2/27) were invasive breast cancers. There were no identified risk factors on uni-variate and multivariate regression analysis which conferred a risk of breast cancer recurrence. Discussion: The mean age at diagnosis in this group is younger than the western average (65 - 75 years). Majority of the women presented with symptoms – a presentation that differs from that of countries with a national breast cancer screening program. The molecular distribution of breast cancers is comparable to western populations. Conclusions: Recurrence rate for early breast cancer in this series is 7.2%, which is comparable with documented western data, with majority of the recurrences being detected initially on clinical/self-breast examination.

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MALE BREAST CARCINOMA: A CASE REPORT

10.36106/gjra/7914524 ◽

2021 ◽

pp. 226-227

Author(s):

Sarvesh Kumar Dubey ◽

Subham Anand ◽

D. K. Sinha ◽

Aravind. K.R

Keyword(s):

Breast Cancer ◽

Breast Carcinoma ◽

Positive Family History ◽

Age Distribution ◽

Male Breast ◽

Age At Diagnosis ◽

Prognostic Indicators ◽

Lymph Node Status ◽

Breast Cancers ◽

Predisposing Factor

Male breast cancer(MBC) is a rare disease and represents less than 1% of all malignancies in men and only 1% of all breast cancers. The mean age at diagnosis for men with breast carcinoma is older than the average age at diagnosis for women. It has a unimodal age frequency distribution that peaks at age distribution of 71 years. MBC behaves in a way similar to post menopausal breast cancer in women. The main predisposing factor is a positive family history of breast cancer. 90% tumors are ER positive. The most important prognostic indicators are stage at diagnosis and lymph node status.

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