Introduction: Enhancing Detection and Early Cancer Recognition with Multimodal Optical Imaging and Spectral Analysis.- Malignant tissue optics.- Optical clearing of biological tissues: prospects of application for multimodal cancer diagnostics.- Multiparametric analysis of tumor using microscopic fluorescence imaging.- NIRS for brain cancer detection.- Exhaled air analysis using wideband wave number tuning range infrared laser photoacoustic spectroscopy.-...