FCGR2B and neoplasm: <h4>Background</h4>High-grade serous ovarian cancer (HGSOC) is characterized by a complex tumor microenvironment and poor prognosis, yet the roles of specific tumor-associated macrophages (TAMs) subpopulations in driving disease progression remain elusive.<h4>Methods</h4>This study evaluated the prognostic relevance of <i>FCGR2B</i> in HGSOC.