Wow Stephanie,
that's a rich and detailed story, thank you for sharing this piece of work! It shows clearly how many conflict levels and triggers can be connected to an expectation/foreknowledge, diagnosis and treatment process. As a breast tumor in ((Reproductive - Milk Ducts and Mamilla|ductal tissue)) can appear in regeneration phase after a relief/resolution of a separation conflict, it would be interesting to know whether this was the case here? Do you know what the biopsy showed about the kind of cells that were replicating? The involved l((Circulatory - Lymph-Nodes |ymph nodes)) could be a hint for that regeneration was already going on, which is a good sign especially when one has as many resources as you.
I like the META-meanings you found!