What is the most common type of ovarian tumor?

The most common type of ovarian tumor is a serous cystadenoma. These tumors are classified as epithelial ovarian tumors and typically arise from the surface epithelium of the ovaries. Serous cystadenomas are often benign and can be quite large, with some reaching significant sizes before they are diagnosed.

These tumors are characterized by their cystic nature, containing a watery or serous fluid. Histologically, they show a lining of serous epithelium and can often be distinguished by the presence of cilia. Among ovarian tumors, serous cystadenomas are notably prevalent in women, particularly in those of reproductive age, making them the most commonly encountered benign tumors in the ovaries.

This prevalence is significant in the context of female reproductive health, as understanding the characteristics of serous cystadenomas helps healthcare providers differentiate between benign and malignant ovarian masses during diagnostic imaging and clinical evaluation. In contrast, conditions like endometriomas, germ cell tumors, and granulosa cell tumors occur less frequently and have distinct characteristics and patient demographics. Knowing these differences aids in proper diagnosis and management of ovarian tumors.