Disclosed herein is a method for analyzing, localizing and/or identifying one or more tissue samples comprising generating gaseous tissue particles from a site in the one or more tissue samples, transporting the gaseous tissue particles from the site to an analyser, using the analyser for generating tissue-related data based on the gaseous tissue particles, and analyzing, localizing and/or identifying the one or more tissue samples based on the tissue-related data. Also disclosed are related systems.