Angelina has Venus conjunct her Cancer Ascendant. Our rising sign and placements are reflected in our appearance and physical body, along with the 1st House. Her alignment suggests beauty, femininity, attractiveness, softness, a motherly appearance [did you know Cancer relates to the breasts/chest/stomach in medical astrology?]. Her large lips and breasts have been discussed on gossip sites for years. Venus rising in Cancer indeed.
Her current transits are significant. Pluto is the planet relating to the removal of something, usually forced upon us without option (because we humans find it hard to 'let go'). Pluto is present when we carve something out of the body, deal with toxins, cysts, growths, tumors and some of the heavy-hitting health topics such as HIV/AIDS & Cancer.
As you can see, Pluto is transiting Angelina's 6th House of Health and squaring (challenging) the ruler of 6th House (Jupiter) and square her Moon (connected to the breasts in medical astrology) which also rules her 1st House of Physical Appearance and Bodily Health.
In these cases, Angelina tapped into her Pluto Initiation in her 6th Cycle (for more info on your Personal Cycles, see my book Surfing Your Solar Cycles) by deciding to completely remove both breasts. That's the key Plutonian signature: All or Nothing.
And since Pluto represents Cancer with a transit through her House of Health hitting all these key personal planets, connected to her bodily condition and physical health (the 1st and 6th) the decision seems a very sensible one.
P.S Did you also spot transiting Chiron? The energy of wounds/healing squaring Angelina's Sun (the self) in Gemini (the Twins, doubles, pairs) at the end of the 8th house of endings/transformation/letting go/surgery.