We present a detailed study of the gas chemical abundances in planetary nebulae (PNe), the final fate of solar-like stars, through high spatial resolution Integral Field Unit spectroscopy (IFU) obtained with the Multi Unit Spectroscopic Explorer (MUSE) attached to the 8.2-m Very Large Telescope (VLT) in Chile. We focused on three PNe with high abundance discrepancy factors (ADF > 20), which is a well-known and major unresolved problem in nebular astrophysics: chemical abundances obtained from faint optical recombination lines (ORL) yield systematically larger values than those obtained from
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