TY - JOUR A1 - Gomez, Christophe A1 - Hartung, Niklas T1 - Stochastic and deterministic models for the metastatic emission process BT - Formalisms and Crosslinks JF - Cancer Systems Biology N2 - Although the detection of metastases radically changes prognosis of and treatment decisions for a cancer patient, clinically undetectable micrometastases hamper a consistent classification into localized or metastatic disease. This chapter discusses mathematical modeling efforts that could help to estimate the metastatic risk in such a situation. We focus on two approaches: (1) a stochastic framework describing metastatic emission events at random times, formalized via Poisson processes, and (2) a deterministic framework describing the micrometastatic state through a size-structured density function in a partial differential equation model. Three aspects are addressed in this chapter. First, a motivation for the Poisson process framework is presented and modeling hypotheses and mechanisms are introduced. Second, we extend the Poisson model to account for secondary metastatic emission. Third, we highlight an inherent crosslink between the stochastic and deterministic frameworks and discuss its implications. For increased accessibility the chapter is split into an informal presentation of the results using a minimum of mathematical formalism and a rigorous mathematical treatment for more theoretically interested readers. KW - Poisson process KW - Structured population equation KW - Metastasis KW - Mathematical modeling Y1 - 2018 SN - 978-1-4939-7493-1 SN - 978-1-4939-7492-4 U6 - https://doi.org/10.1007/978-1-4939-7493-1_10 SN - 1064-3745 SN - 1940-6029 VL - 1711 SP - 193 EP - 224 PB - Humana Press Inc. CY - Totowa ER -