摘要：PABC is defined as breast cancer diagnosed during pregnancy or within one year following delivery. Breast cancer is the most common pregnancy-asso- ciated cancer (Van Calsteren et al., 2010). Between 0.2 and 3.8% of all breast cancer patients are diag- nosed during pregnancy (diFronzo and O'Connell, 1996) and 1 in 3000 pregnancies is affected by a breast cancer (du Bois et al., 1993). incidence is in- creasing due to a higher maternal age at pregnancy (nettleton et al., 1996; Andersson et al., 2009, Han et al., 2010).
