Let’s say a patient has palpitations, headaches, sweating, and high blood pressure. These are all symptoms that are very typical of a condition known as pheochromocytoma (a tumor that secretes adrenaline). However, “pheos” are extremely rare. Therefore, even with typical symptoms, the patient is far more likely to have anxiety, or hyperthyroidism, or pretty much anything else that can cause these symptoms. Pheos are that rare.
Heuristic
