PDLIM7 and neoplasm: Indeed, approximately 20%‐30% of cases initially diagnosed with LMP are eventually confirmed to be IOC.1 The diagnosis is based on histopathological observation without the use of molecular markers, leading to inaccuracy in the diagnosis of LMP.1 Hence, the pathologist may often use terms such as ‘rule out LMP’ or ‘at least LMP’ in diagnostic reports.7, 8 The gene expression profile determines the phenotype of the tumour.9 Therefore, revealing the molecular differences between LMP and IOC and identifying useful molecular markers may increase the accuracy of diagnosis.