Sep 3, 2014
Diseases Doctors Often Get Wrong (Part 1.)
Irritable Bowel Syndrome
Some conditions are difficult to diagnose because there is no real test to prove their existence; rather, they require a “diagnosis of elimination,” as doctors’ rule out all other possibilities. IBS is a chronic condition that affects the large intestine and causes abdominal pain, cramping, bloating, diarrhea, and/or constipation. According to diagnostic criteria, a patient should have symptoms for at least six months before being seen for a formal evaluation. Discomfort should be present at least three days a month in the last three months before being diagnosed with IBS.
Celiac disease -- an immune reaction to gluten that triggers inflammation in the small intestine -- takes the average patient six to 10 years to be properly diagnosed. Celiac sufferers would, in theory, have digestive problems when eating gluten-containing foods like wheat, barley, and rye, but in fact, only about half of people diagnosed with the disease have experienced diarrhea and weight loss.
Celiac disease can also cause itchy skin, headaches, joint pain, and acid reflux or heartburn, and it's all too easy to blame these symptoms on other things. A blood test can diagnose celiac disease no matter what symptoms are present, and an endoscopy can determine any damage that's been done to the small intestine.
Fibromyalgia, which is characterized by widespread musculoskeletal pain, involves "medically unexplained symptoms" -- a term doctors use to describe persistent complaints that don't appear to have an obvious physical cause. When doctors can't find a root cause for a patient's chronic pain and fatigue, they often settle on this diagnosis. This may involve seeing specialists and ruling out other diseases, some of which prove equally difficult to diagnose, says Dr. Eugene Shapiro, deputy director of the Investigative Medicine Program at Yale University.
"There are studies that show that people with certain symptoms who show up at a rheumatologist will be diagnosed with fibromyalgia, but if the same patients show up at a gastroenterologist they'll be diagnosed as having irritable bowel syndrome."
Another autoimmune disease, multiple sclerosis (MS) occurs when the immune system attacks the body's own nerve cells and disrupts communication between the brain and the rest of the body. Some of the first symptoms of MS are often numbness, weakness, or tingling in one or more limbs, but that's not always the case.
Multiple sclerosis can be episodic; the disease tends to wax and wane. Depending on the number and location of lesions in the brain, he adds, signs and symptoms may be more or less severe in different people. Once a doctor does suspect MS, however, a spinal tap or MRI can help confirm the diagnosis.
Deborah Wiancek, N.D. Deborah Wiancek