Intraoperative Label-Free Photoacoustic Histopathology of Clinical Specimens (Laser Photonics Rev. 15(10)/2021) B Photoacoustic Histopathology b As described in article number 2100124 by Jin Young Kim, Kyunghee Byun, Chulhong Kim, and co-workers, label-free Intraoperative histopathology can be performed photoacoustically on clinical specimens without complex procedures (freezing, sectioning, and staining) by steering UV light and generated ultrasound simultaneously using a high-speed waterproof microelectromechanical systems (MEMS) scanner, which has the capability to provide not only histoarchitectural features but also cytologic features for guiding pathologists.