What types of medical issues can disqualify someone from having breast augmentation?

If your medical condition is stable even with an endocrine Producing tumor, there's no contraindication to breast augmentation. However this would be done with the advise and consent of your endocrinologist.

This emphasizes the importance of an exam and consult with a board certified plastic surgeon when entertaining such a procedure that places an implant within ones body.  Our body is the most important, complex entity we control.  Many medical conditions exist that would prevent one from undergoing this type of procedure.

Given that your medical condition has been treated and you are asymptomatic, it is most likely that you will be able to undergo breast augmentation surgery without difficulty. Best be seen by your endocrinologist  to verify. He/she may have recommendations for perioperative management for your plastic surgeon. Best wishes.