  An extended chiral SU(3) model is applied to the description of dense, hot
and strange hadronic matter. The degrees of freedom are the baryon octet and
decuplet and the spin-0 and spin-1 meson multiplets. The parameters of the
model are fitted to the hadron masses in vacumm, infinite nuclear matter
properties and soft pion theorems. At high densities the appearance of density
isomers cannot be ruled out and extrapolation to finite temperature exhibits a
first order phase transition at $T \approx 150 MeV$. The predicted dropping
baryon masses lead to drastically changed particle ratios compared to ideal gas
calculations.
