Welcome to Health Care Magic
Sorry to see some new problems in a situation like this.
I am an Internist (+Cardiologist!) - Any new finding in your setting must be taken as directly related to the primary event - and appropriately investigated.
Pituitary may overact to compensate losses - but should not bulge. And in association with frontal sclerosis
, it is a secondary deposit - unless proved otherwise.
You must see your ONCOLOGIST
as soon as possible - for favour of further assessment and assistance
Wishing you speedy recovery