No actual staging on the version I took, nor routes of metastasis. Treatment gets tested (not specific regimens, just general management, e.g. chemo/XRT/surgery).
Here's how I think about cancer: chemo is used for systemic mets (peritoneal metastasis, malignant ascites included); XRT is used for locally extensive disease (local invasion into unresectable structures, tumors too bulky to remove en bloc, local recurrance of previously resected cancers); surgery is used for local control, and is often the only curative option. You can then memorize only the variations from that general scheme (which are pretty rare).
Particular to OB/Gyn, know that partial mastectomy (aka lumpectomy) + XRT has similar curative potential to mastectomy -- and it is the prefered option UNLESS (1) the breast is too small for a good cosmetic result (2) the patient is unwilling/unable to undergo XRT (e.g. previous irradiation to the area, person lives too far from nearest XRT site) (3) patient preference (4) recurrent disease after breast conserving therapy.
The other stuff is pretty minor, so read through it but dont' obsess over it untill you know the other stuff real well.
Best,
Anka