PREGNANCY ASSOCIATED BREAST CANCER (PABC): REPORT FROM A PERIPHERAL PRIMARY SUB CENTRE IN NORTH EAST INDIA
Main Article Content
Keywords
Pregnancy associated Breast cancer(PABC), triple negative breast cancer (TNBC), hormone receptor (HR), HER 2, Invasive ductal carcinoma(IDC), Early Breast Cancer (EBC), Locally Advanced Breast Cancer (LABC), MBC- Metastatic Breast Cancer, Antepartum, Postpartum, MTP – Medical Termination of Pregnancy, FTD, NACT- Neo Adjuvant Chemo Therapy, BCS- Breast Conserving Surgery, MRM – Modified Radical Mastectomy
Abstract
Background
Pregnancy associated breast cancer (PABC) is a rare entity and defined as breast cancer diagnosed during pregnancy or one-year post-partum. There is sparse data especially from low and middle-income countries (LMIC) and merits exploration.
Methods
The study (2015 to 2020) evaluated clinicopathological characteristics, treatment patterns and outcomes of PABC.
Results
There were 10 patients, median age of 29.5 years; 4 had triple-negative disease, 3 had hormone-receptor (HR) positive and HER2 negative, 2 had HER2-positive and HR negative and 1 had triple positive disease. 8 had IDC grade III tumour’s and 6 had delayed diagnosis. 2 patients were EBC, 6 patients were LABC and 2 patients were MBC. Trastuzumab, tamoxifen, and radiotherapy were administered post-delivery.
Of the 10 patients, 7 were diagnosed antepartum (AP) and 3 had termination, 1 had preterm and 3 had full-term deliveries(FTDs). Among 3 patients who underwent MTP 2 patients had metastatic disease and 1 patients underwent termination willingly. Among postpartum group (n= 3), all were LABC and underwent NACT.
Conclusion
Data from the tertiary cancer centre in North east India showed that the majority had delayed diagnosis and aggressive features(TNBC, higher grade). Treatment was feasible in majority and with favourable maternal and foetal outcomes.
References
2. Eibye S, Kjær SK, Mellemkjær L. Incidence of pregnancy-associated cancer in Denmark, 1977-2006. Obstet Gynecol 2013;122(3):608-17.
3. Cardonick E, Dougherty R, Grana G, Gilmandyar D, Ghaffar S, Usmani A. Breast cancer during pregnancy. Canc J 2010;16(1):76-82.
4. Amant F, von Minckwitz G, Han SN, et al. Prognosis of women with primary breast cancer diagnosed during pregnancy: results from an international collaborative study. J Clin Oncol 2013;31(20):2532-9.
5. Moller AB, Patten JH, Hanson C, et al. Monitoring maternal and newborn health outcomes globally: a brief history of key events and initiatives. Trop Med Int Health 2019;24(12):1342-68.
6. Peccatori FA, Azim JA, Orecchia R, et al. Cancer, pregnancy and fertility: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 2013;24(SUPPL.6).
7. Bongaarts J, Blanc AK. Estimating the current mean age of mothers at the birth of their first child from household surveys. Popul Health Metrics 2015;13(1): 25.
8. Cardoso F, Kyriakides S, Ohno S, et al. Early breast cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 2019;30(8):1194-220.
9. Bajpai J, Shylasree T. Pregnancy-associated breast cancer: controversies and consensus! Oncobiology and Targets 2016;3(1):6.
10. Amant F, Van Calsteren K, Halaska MJ, et al. Long-term cognitive and cardiac outcomes after prenatal exposure to chemotherapy in children aged 18 months or older: an observational study. Lancet Oncol 2012;13(3):256-64.
11. Ruiz R, Herrero C, Strasser-Weippl K, et al. Epidemiology and pathophysiology of pregnancy-associated breast cancer: a review. Breast 2017;35:136-41.
12. Ahn BY, Kim HH, Moon WK, et al. Pregnancy- and lactation-associated breast cancer: mammographic and sonographic findings. J Ultrasound Med 2003;22(5):491-7.
13. Johansson ALV, Andersson TML, Hsieh CC, Cnattingius S, Dickman PW, Lambe M. Family history and risk of pregnancy-associated breast cancer (PABC). Breast Canc Res Treat 2015;151(1):209-17.
14. Taylor D, Lazberger J, Ives A, Wylie E, Saunders C. Reducing delay in the diagnosis of pregnancy-associated breast cancer: how imaging can help us. J Med Imaging Radiat Oncol 2011;55(1):33-42.
15. Bae SY, Jung SP, Jung ES, et al. Clinical characteristics and prognosis of pregnancy-associated breast cancer: poor survival of luminal B subtype. Oncol 2018;95(3):163-9.
16. Gooch JC, Chun J, Kaplowitz E, et al. Pregnancy-associated breast cancer in a contemporary cohort of newly diagnosed women. Breast J 2019.
17. Nair N, Shet T, Parmar V, et al. Breast cancer in a tertiary cancer center in India - an audit, with outcome analysis. Indian J Canc 2018;55(1):16.
18. [18] Lambe M, Hsieh CC, Trichopoulos D, Ekbom A, Pavia M, Adami HO. Transient increase in the risk of breast cancer after giving birth. N Engl J Med 1994;331(1):5-9.
19. Chie WC, Hsieh CC, Newcomb PA, et al. Age at any full-term pregnancy and breast cancer risk. Am J Epidemiol 2000;151(7):715-22.
20. Amant F, Loibl S, Neven P, Van Calsteren K. Breast cancer in pregnancy. Lancet 2012;379(9815):570-9.
21. OʼLaughlin A, So S, Fleischer L, Akoto S, Cardonick E. Safety of taxane chemotherapy in breast cancer during pregnancy [28O]. Obstet Gynecol 2019;133:169-70.
22. Daly MB, Pilarski R, Yurgelun MB, et al. NCCN guidelines insights: genetic/ familial high-risk assessment: breast, ovarian, and pancreatic, version 1.2020. J Natl Compr Canc Netw 2020;18(4):380-91.
23. Van Calsteren K, Heyns L, De Smet F, et al. Cancer during pregnancy: an analysis of 215 patients emphasizing the obstetrical and the Neonatal outcomes. J Clin Oncol 2010;28(4):683-9.
