They found a "spot" on my adrenal gland during a cat scan (for a completely separate issue). should i be worried?

No: Adrenal nodules are commonly found this way. A patient with a nonfunctioning mass <3 cm should be followed up with appropriate CT scans (or MRI). If the mass has not grown at the 3-month or 1-year follow-up, no further testing is recommended. If the mass does grow within 1 year, adrenalectomy is recommended or if >4cm and nonfunctioning it is recommended for removal.

No.: Incidental findings such as these are picked up quite frequently and most times do not correlate with anything significant. If you have difficult to control hypertension, or if you are a smoker then you could make a case for looking deeper into the matter. If not, I'd get the same type of test repeated in 6-12 months to make sure whatever it is isn't getting larger.

Follow up on it!: Hi. That's called an adrenal incidentaloma because it was found incidentally looking for other stuff. It needs to be thoroughly evaluated to see if it's making any hormones (chiefly cortisol, aldosterone, epinephrine, or norepinephrine, but others possible too) and/or if it's a cancer. You'll need a good endocrinologist and a med center capable of all the diagnostic tests required. Good luck!