  We present the spectral energy distribution (SED) between 10 and 200 micron
obtained for the prototype Narrow-Line X-Ray Galaxy NGC 7582 with ISOPHOT, the
photometer on board the Infrared Space Observatory. The emission is spatially
extended and we separated for the first time the nuclear and extranuclear
infrared SEDs. The nuclear luminosity is dominated by cold (T ~ 32 K) dust
emission mainly due to star formation activity; warm (T ~ 122 K) dust emission
is also present and is probably related to the active nucleus. In addition to a
cold component of 30 K, the extranuclear SED shows emission by colder (T ~ 17
K) dust: this very cold component comprises 90% of the total dust mass of 10**8
Msun.
