  We are interested in the charged dust solutions of the Einstein field
equations in stationary and axially symmetric spacetimes; and inquire if the
naked singularities of the Israel-Wilson-Perjes (IWP) metrics can be removed.
The answer is negative in four dimensions. We examine whether this negative
result can be avoided by adding scalar or dilaton fields. We show that IWP
metrics also arise as solutions of the Einstein-Maxwell system with a stealth
dilaton field. We determine the IWP metrics completely in terms of one complex
function satisfying the Laplace equation. With the inclusion of the stealth
dilaton field, it is now possible to add a perfect fluid source. In this case
the field equations reduce to a complex cubic equation. Hence this procedure
provides interior solutions to each IWP metric; and it is possible to cover all
naked singularities inside a compact surface where there is matter
distribution.
