Synchronous bilateral breast cancer is dened as two
tumours diagnosed within 6 month interval and those above 6
months termed as metachronous breast cancer though there
is difference in time interval specied by various clinicians.
SBBC is a rare entity with incidence of 0.3 – 1.2% though it is
recently increasing due to improved life expectancy after
treatment and routine use of contralateral mammography. It is
considered that synchronous breast tumours are independent
tumours than to be secondary to metastatic spread from
primary. Presence of indraductal component, different
histology and different degree of differentiation implies that
2
they are independent tumors. Mostly women with BSBC are
treated with aggressive measures as they are thought to be
aggressive. Recently overall consensus is that bilateral
breast cancer is amenable to breast conservation surgeries
1 without compromising surviva
Synchronous bilateral breast cancer: A case report of heterogeneous estrogen receptor status
