Fig. 1

Morphological characteristics of breast cancer in the saline + FAC-D and açaí + FAC-D treated groups. Timeline representation of the experimental model (A). Macroscopic view of breast cancer after treatments (B, C). DMBA induced breast cancer in the saline + FAC-D (B, D) and açaí + FAC-D (C, E) groups. There was no significant difference in tumour volume (F), P-value 0.085. Histological analysis (D, E) showed the presence of carcinoma invasion areas in both groups, with hyperchromatic nuclei cells consistent with a mononuclear inflammatory infiltrate in the fibrovascular stroma (#). However, a higher number of inflammatory cells (→) in the saline + FAC-D group (D) and a decreased number of these cells (*) in the açaí + FAC-D group (E) were observed. Tumour incidence (P-value 0.09) and mortality (P-value 0.42) in the saline + FAC-D and açaí + FAC-D treatment groups are shown (G)