PTPRM and metastatic malignant neoplasm in the lymph nodes: The results showed that the expression of PTPRM in EOC was significantly different in the comparison of patients' age, clinical stage, maximum diameter of the mass,and whether the tumor recurred in the subgroup, whereas the differences were not significant in the comparison of the factors of pathological type, age of menarche, age of menostasis, number of pregnancies, family history, presence of medical comorbidities, tumor markers, presence of ascites, unilateral and bilateral masses, and presence of lymph node metastasis.