Build what you need or go to a custom cabinet company. Just build the carcasses so you can put flat doors on them. The width of the cabinet will depend on the wall's arch.
Ron

Aw, the memories of installing cabinets in geodesic domes!

Ditto what Ron said!

ron6519: I looked at Crystal and they said to put a 33" easy reach with shelves. The doors would be two doors hinged to form right angle, but still no lazy susan..ho hum..

The reason i brought up geodesic is that it relates though you are scribing to angles vs. radius. Room for a lazy susan all depends on the span of the radius and how sharp the radius'd wall is. From the widest of the center point to the ends depends on this radius and will determine what you can and cant get in there as well as location.If you could provide more details with maesurements, it can be scaled out to see what would work for you.