Left: VLBI radio continuum map of 4C 31.04. The contours start at 4σ and increase by a factor of $\sqrt{2}$. The beam is shown in the bottom right corner of the image. The peak brightness is 196 mJy beam⁻¹, measured at the hot spot along the eastern lobe. Right: HST WFPC2/PC zoomed-in image of the inner part of MCG 5-4-18 in colour overlaid with the radio source in the very centre surrounded by black contours. The HST image shows the warped dust lane perpendicular to the radio axis. The HST image is taken from the Mikulski Archive for Space Telescopes (MAST).