Image reconstruction of FS CMa. Left: FS CMa circumstellar disk image from MATISSE L- and N-band observations using MATISSE DRS image reconstruction software IRBis. The H band VLTI/PIONIER image from Kluska et al. (2020) is shown as an inset at the same scale for comparison. Right: corresponding uv-plane coverage with measurements obtained using the small (red), medium (blue), large (green), and three different intermediate AT configurations (orange).