a person with special skills, obtained through education and experience, in one or more areas of health care. A person who provides therapy. See Enterostomal therapist, Licensed Massage therapist, Psychotherapist, Physical therapist.
Gallstones are pieces of solid material that form in the gallbladder. These stones develop because cholesterol and pigments in bile sometimes form hard particles. The two main types of gallstones are: 1  Cholesterol stones: Usually yellow-green in color, approximately 80% of gallstones are cholesterol stones.
Picture of Gallstones. There are two types of gallstones: 1) cholesterol stones and 2) pigment stones. 1  Patients with cholesterol stones are more common in the United States; cholesterol stones make up a majority of all gallstones. 2  They form when there is too much cholesterol in the bile.