JAG1 and ovarian benign neoplasm: The percentage of expression of Notch1, Jagged1 and NICD in ovarian cancer specimens was 100% (43/43), 97.7% (42/43) and 100% (43/43) respectively, while the expression of Notch1, Jagged1 and NICD in benign ovarian tumour was detected in 10 (90.9%) specimens, 6 (54.5%) specimens and 1 (9.1%) specimen, respectively.