Prognostic Impact of Tumor Immune Microenvironment and Its Predictive Role in Salivary Gland Cancer.

From the analysis of the current 'status of the art' it clearly emerges a need for precise, unambiguous phenotyping of immune cell populations, as well as a more thorough understanding of the frequencies and interactions of multiple immune cell types inside the TIME and their spatial localization (intratumoral vs. stromal).