Expression of Ki-67 immunohistochemistry in borderline ovarian tumor / Norhafiza Rashid

Ovarian tumor is the forth most common female cancer in Malaysia. Surface epithelial tumor is 90% of all ovarian tumors. Therefore, this type tumor has been chosen to look for different expression of benign, borderline and malignant epithelial tumor for Ki-67 immunohistochemical Staining. Most of cysts found usually more than 5cm in largest diameter. It is important for the pathologist to incise adequate sample in order to get correct diagnosis for the patient. From the study, we found there is significant difference between these three types of ovarian tumors. However, there is no significant difference Ki-67 staining between morphologically borderline areas and morphologically malignant areas in a confirmed case of malignant case.