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Misdiagnosis or underdiagnosis of rare diseases in patients with diagnoses of common diseases can lead to delayed or inappropriate treatments, thereby complicating the management of both rare and ...

New name: MASLD Doctors used to call this condition NAFLD (non-alcoholic fatty liver disease) because tissues examined under a microscope resembled those of alcohol-associated liver disease, though ...

It can be a real pain in the neck. Rheumatoid arthritis, or RA, is an autoimmune disease in which the body mistakenly attacks the lining of the joints, causing painful swelling and stiffness. About ...

Sometimes, people with lupus also have other conditions or diseases. These “overlap” conditions may include Raynaud’s syndrome, Sjögren’s syndrome, rheumatoid arthritis, and others. If you think you ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Most people hear the names of medical conditions every day without ...

Blacklegged tick (Ixodes pacificus) on a leaf, carrier of the Lyme disease, 2005. Image courtesy Centers for Disease Control (CDC) / James Gathany, William L. Nicholson. (Photo by Smith ...