Lymphoid aggregates appear as slightly elevated nodules that may be normal in color or more red than…

What is melanosis coli?Melanosis coli is a dark brown discoloration (pigmentation)…

What is microscopic colitis?Microscopic colitis includes collagenous colitis and…

What is non-cardiac chest pain?Non-cardiac chest pain is chest discomfort that does…

What is Nonalcoholic Fatty Liver Disease (NAFLD)?

What is pancreatitis?Pancreatitis is inflammation (irritation) of the pancreas. The…

What is pelvic floor dysfunction?Pelvic floor dysfunction refers to the abnormal…

What is porphyria?Porphyria is a term that refers to a group of disorders—the…

What is presbyesophagus?Presbyesophagus is a term used to describe an abnormal shape…

What is primary biliary cholangitis (PBC)?