EOC metastasis is unique, as initial dissemination is not primarily hematogenous yet is facilitated through shedding of primary tumor cells into the peritoneal fluid and accumulating ascites as the disease progresses [1], [30] and [31]. Multicellular, compact spheroids are highly invasive structures that are increasingly accepted as clinically relevant to EOC metastasis. EOC spheroids are more chemoresistant relative to single cells. Thus, chemotherapeutic intervention alone may select for these highly invasive subpopulations. Combined therapies may offer the greatest impact in targeting EOC.