A Study on Expression of P53 in Surface Epithelial Ovarian Tumours

Aims and Objectives (1) To perform and interpret p53 immunostaining on the diagnosed malignant surface epithelial ovarian tumours. (2) To correlate expression of p53 with histological type of malignancy. Materials and Methods A 2-year prospective study was done i.e., from October 2011 to September 2013 on ‘A study on expression of p53 in surface epithelial ovarian tumours’ in MGM Hospital, Warangal. All the ovarian surface epithelial tumour specimens, received in the pathology department during this period were considered. Results A total of 121 cases were studied, out of which benign tumours were the most common (64.4%), followed by malignancy (25.6%) and 12 cases(10%) of borderline malignancy. Most of the benign tumours were unilateral; the cases that showed bilateral involvement were mostly malignant. The maximum number of cases in the present study was seen in the age group of 31–60 year. The youngest patient was 16 year old and the oldest was 68 year old. Serous cyst adenoma was the most common neoplasm found and accounted for 53 cases (43.8%), followed by mucinous cystadenoma, which accounted for 21 cases (17.3%). Nine cases of serous cystadenofibroma (7.43%), 3 borderline serous tumours (2.47%) and 11 serous cystadenocarcinoma (9%) were found in the present study. Out of the 44 mucinous tumours, 21 were benign (17.3%), 3 were of borderline malignancy (2.47%) and 20 were malignant (16.5%). One case of mucinous cystadenocarcinoma was found to be associated with adenocarcinoma of ascending colon. One case of benign Brenner tumour was also found in the present study. The rate of p53 abnormalities varies with histological type, grade and stage of the tumour. P53 expression was more in malignant serous tumours as compared to the malignant mucinous tumours.