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.
In a childâs head, an arachnoid cyst can be between the brain and the skull or inside the brain. Arachnoid cysts in the brain form in open spaces called ventricles that normally contain CSF. Arachnoid cysts are found in many parts of the brain. Most are in the middle or back of the brain. Arachnoid Cyst in Children