NAFLD, or non-alcoholic fatty liver disease, is a condition in which the liver accumulates excess fat. Diagnosing this condition can be difficult as its symptoms may be similar to other liver diseases, and can often be silent. However, there are certain tests which physicians may use to diagnose NAFLD.
The first step in diagnosing NAFLD is typically a physical exam and medical history. During the physical exam, the doctor may use palpation to feel for any abnormal lumps or tenderness in the abdomen. They may also perform blood tests to check for elevated liver enzymes, which may indicate a liver disorder.
The next step is typically an imaging test. Ultrasound is often used to diagnose NAFLD. This test is non-invasive and uses sound waves to create an image of the liver, allowing the doctor to identify any areas of fatty accumulation. Other imaging tests which may be used include computed tomography (CT) and magnetic resonance imaging (MRI).
If the imaging test reveals that the patient has NAFLD, the doctor may order a liver biopsy. This test involves taking a sample of liver tissue to examine under a microscope. The biopsy can provide more information about the extent and severity of the condition.
Finally, the doctor may use a non-invasive test called FibroScan, which uses ultrasound to measure the stiffness of the liver. This can help identify both fatty liver disease and any scarring or fibrosis which may be present.
In summary, NAFLD is typically diagnosed with a physical exam and medical history, imaging tests, a liver biopsy, and FibroScan. By using these tests, a doctor can accurately diagnose the condition and provide appropriate treatment.