Strangeness production in high multiplicity events gives indications on the transverse size fluctuactions
in nucleus-nucleus (AA), proton-nucleus (pA) and proton-proton (pp) collisions. In particular
the behavior of strange particle hadronization in "small" (pp, pA) and "large" (AA) initial
configurations of the collision can be tested for the specific particle species, for different centralities
and for large fluctuations of the transverse size in pA and pp by using the recent ALICE
data. A universality of strange hadron production emerges by introducing a dynamical variable
proportional to the initial parton density in the transverse plane.