Frequency and pattern of ovarian tumours

Objective: to evaluate the frequency and types of ovarian tumours with respect to age. methodology: all the ovarian tumours which were diagnosed in the department of pathology, muhammad medical college hospital mirpurkhas over a five years period from january 2005 to december 2009 were reviewed. results: a total of 227 cases were reviewed. 181 lesions were found benign tumours and 46 were malignant. surface epithelial tumours were common benign tumours and consist of serous cyst adenoma with a frequency of 55% followed by mucinous cyst adenoma 20%. benign germ cell tumours was 25%. in malignant tumours, serous cyst adenocarcinoma was the commonest malignant lesion 38% followed by 17% cases of mucinous cyst adenocarcinoma and one (2%) case of clear cell carcinoma. germ cell tumours were composed of immature teratoma 11%, yalk sac tumour 9%, mixed germ cell tumour 4% & a single case of dysgerminoma with a frequency of 2%. the frequency of sex- cord stromal tumours was 17%. most of the benign tumours were found in 3rd and 4th decades of life. however maximum number of malignant tumours was seen in 5th and 6th decades. conclusion: in this study surface epithelial tumours were the major histological type of ovarian tumours followed by germ cell tumours.