  Filamentary regions of high vorticity irregularly form and disappear in the
turbulent flows of classical fluids. We report an experimental comparative
study of these so-called " coherent structures " in a classical versus quantum
fluid, using liquid helium with a superfluid fraction varied from 0% up to 83%.
The low pressure core of the vorticity filaments is detected by pressure probes
located on the sidewall of a 78-cm-diameter Von K\'arm\'an cell driven up to
record turbulent intensity (R $\lambda$ $\sim$ $\sqrt$ Re 10000). The
statistics of occurrence, magnitude and relative distribution of the filaments
in a classical fluid are found indistinguishable from their superfluid
counterpart, namely the bundles of quantized vortex lines. This suggest that
the internal structure of vortex filaments, as well as their dissipative
properties have a negligible impact on their macroscopic dynamics, such as
lifetime and intermittent properties.
