Iodine is the heaviest of the commonly occurring halogens. The halogens are in Group 17 (VIIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. Iodine's chemical properties are similar to the lighter halogens above it, fluorine, chlorine, and bromine.
Choledochal cyst is a problem with the tubes (ducts) that carry bile from your child's liver to their gallbladder and intestine. The tubes get bigger than normal (dilate), or pouches form on the tubes. This keeps bile from flowing well, which can cause liver problems.
Updated April 06, 2017. A subchondral bone cyst is a fluid-filled sac that forms inside of and extends from the bone of a joint. It is seen on x-rays in cases of osteoarthritis. These cysts are not treated. They are a sign of osteoarthritis, although they do not occur in all cases.