For information about the wide variety of Jewish views on what happens after death, see Simcha Paull Raphael's book, Jewish Views of the Afterlife. Raphael, a Reconstructionist rabbi, takes a historical approach to life-after-death theories, exploring the views that predominated in each era of Jewish history.
Preauricular sinus and cyst. A preauricular sinus (also known as a congenital auricular fistula, a congenital preauricular fistula, a Geswein hole, an ear pit, or a preauricular cyst) is a common congenital malformation characterized by a nodule, dent or dimple located anywhere adjacent to the external ear.
Perineural cysts, which are also known as Tarlov cysts, are fluid-filled sacs that form on nerves at the base of the spine. A person with such cysts would likely never know it. They almost never cause symptoms. When they do cause symptoms, however, the most common is pain in the lower back, buttocks, and legs.