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.
Tarlov Cyst. Tarlov cysts are fluid-filled nerve root cysts found most commonly at the sacral level of the spine â the vertebrae at the base of the spine. These cysts typically occur along the posterior nerve roots. Cysts can be valved or nonvalved.