In our previous studies, we concentrated on assessing the serum levels of various circulating hematopoietic cytokines, such as SCF and M-CSF, in OC patients in relation to the histological types (OSCC and OAC) and comparing these levels with classical tumor markers (CEA, SCC-Ag) and a healthy group [31,32]. Here, CEACAM5 is linked to neoplasm.