We are deeply saddened to learn that Prof. Marcus Maurer, a highly esteemed expert who contributed significantly to touchDERMATOLOGY, has been missing for several weeks following a hiking expedition in the mountains. Our hearts and deepest sympathies are with his family and close friends during this difficult time. His guidance, expert insights, and contributions to our platform have been invaluable. We feel privileged to have worked alongside someone whose groundbreaking work has made a significant impact on dermatology and immunology.