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 and other spinal cysts. There are several kinds of cysts that occur in and around the spine. The most common and the least understood occur in the sacrum or tail bone. These are commonly called Tarlov cysts after the neurosurgeon who described them over 70 years ago. These are the most common of all the sacral cysts.