It’s perfectly normal for someone to feel anxious or depressed after receiving a diagnosis of a serious illness. But what if the reverse occurs and symptoms of anxiety or depression masquerade as an as-yet undiagnosed physical disorder?

Or what if someone’s physical symptoms stem from a psychological problem? How long might it take before the true cause of the symptoms is uncovered and proper treatment begun?

Psychiatric Times, a medical publication seen by some 50,000 psychiatrists each month, recently published a “partial listing” of 47 medical illnesses, ranging from cardiac arrhythmias to pancreatic cancer, that may first present as anxiety. Added to that was another “partial listing” of 30 categories of medications that may cause anxiety, including antidepressants like selective serotonin reuptake inhibitors, or S.S.R.I.s.

These lists were included in an article called “Managing Anxiety in the Medically Ill,” meant to alert mental health practitioners to the possibility that some patients seeking treatment for anxiety or depression may have an underlying medical condition that must be addressed before any emotional symptoms are likely to resolve.