PTEN and neoplasm: After inclusion of presurgical KPS score, PTEN expression groups, patient sex and age, tumor diameter, treatment history, pathological type, invasiveness status, disease stage, lobulation status, resection grade and postsurgical radiation therapy in univariable cox regression analysis of PFS, treatment history, pathological type, PTEN expression groups, presurgical KPS score, tumor texture and resection grade were significantly associated with decreased PFS.