Hi VC,
Where were the mets to? The lungs? Any respiratory symptoms? Bone mets or symptoms?
Xian Fang Huo Ming Yin (Angelica and Mastic) turns out to be our knee jerk prescription for mammary adenocarcinoma, although the anti-tumor effects of Tan Yu Tang are substantial, so it's a fine place to start.
From a hemodynamic perspective, the deep pulse on one side and the lavender-centered tongue imply we need to move the circulation (Blood and Qi in TCM terms) peripherally. Tan Yu Tang has a bit of that going on as does XFHMY, so it's a good place to start. Basically, I'd look at this as Dampness accumulation causing Stasis, particularly in the peripheral channels of the body. BOth formulas treat that, so it's a fine place to start.
Good luck!
Steve