EPIC-pn radial surface brightness profile of the extraplanar emission in NGC 5746. The left panel shows the azimuthally averaged profile, while the right panel presents the profiles in the four quadrants (north, west, south, east). The shaded regions indicate the total 1σ uncertainties, including both Poisson errors and an additional background variance term derived from ∼1.8 arcmin² subregions and scaled with area. The horizontal line marks zero net surface brightness after background subtraction.