one of the great challenges in practicing medicine is patient presentation with atypical symptoms.
Most diseases and medical conditions are associated with a typical set of signs and symptoms. However, it is not uncommon for a sign or symptoms, such as fever, to be associated with many different medical conditions, or be more common with a simple, benign condition that a more serious or life-threatening condition may be missed. For example, indigestion can be the this sole symptom of heart attack. Therefore, medical history, physical examination, lab tests and other cardiac tests and procedures may all be needed to confirm or rule out a diagnosis of a heart disease.