  We present a spectrophotometric study of circumnuclear star forming regions
(CNSFR) in the early type spiral galaxies: NGC 2903, NGC 3351 and NGC 3504, all
of them of over solar metallicity according to standard empirical calibrations.
A detailed determination of their abundances is made after careful subtraction
of the very prominent underlying stellar absorption. It is found that most
regions show the highest abundances in HII region-like objects. The relative
N/O and S/O abundances are discussed. In is also shown that CNSFR, as a class,
segregate from the disk HII region family, clustering around smaller ``softness
parameter" -- \eta' -- values, and therefore higher ionizing temperatures.
