Introduction: The advent of ultrasonography has revolutionized the screening and diagnostic realm., Specially in the field of gynecology for early reporting. Gynecological ultrasound is one of the most accurate imaging techniques in clinical practice. Aims and Objectives: To Study co-relation of USG diagnosis with clinical diagnosis of ovarian masses at tertiary health care center. Methodology: After approval from Institutional ethical committee, this prospective study was conducted at department of Obstetrics and Gynecology during the period of September 2013 to September 2015 on 100 women who were randomly selected among the women attending the hospital’s Obstetrics & Gynecology OPD. .A detailed history of presenting complaints & associated symptoms was noted along with menstrual history. Patients were diagnosed clinically then by Ultrasonographically. Result: In the present study, out of the 100 women; maximum (36%) were within the age group of up to 25 years, 27% in 36 to45 years, 25% in 26 to 35 years, 6.0% in 46 to 55 years & 5% >55 years each Out of 100 women, 38% were para two, 30% were primipara 23% were nulliparous & 9% were para three. All benign ovarian cysts, benign ovarian tumors, dermoid cysst, malignant ovarian tumors on USG were diagnosed as adnexal mass clinically. Of 9 patients with functional cyst 6 were diagnosed as adnexal mass and 3 as no mass palpable, all with haemorrhagic cyst had no palpable mass, of 30 PCOS patients 11 were diagnosed clinically while 19 had no mass palpable diagnosis on clinical examination. Of 3 patients with chocolate cyst 2 had adnexal mass and 1 as no mass palpable on clinical diagnosis. Conclusion: The adnexal masses are detected clinically but the details of it only visible by sonography so all clinically suspected adnexal masses should be examined by ultrasonography.

Keywords: Benign Ovarian Cyst; Benign Ovarian Tumor; Dermoid Cyst; Malignant Ovarian Tumor; PCOS.