  Many ellipticals contain nuclear disks of dust and gas. Some ellipticals
contain nuclear disks of stars that are distinct from the rest of the galaxy.
We show that the dwarf E2 galaxy NGC 4486A contains both -- it is a "Rosetta
stone" object that tells us how nuclear disks evolve. Its properties suggest
that, as accreted gas dissipates and settles toward the center, it forms stars
and builds a stellar disk. Secular growth may explain not only the most
distinct nuclear disks such as those in NGC 4486A but also some of the disky
distortions that are commonly seen in elliptical galaxies. That is, density
distributions may grow secularly cuspier. This would result in chaotic mixing
of stellar orbits in phase space and would tend to make an elliptical galaxy
evolve toward a more nearly axisymmetric shape.
