Table 1.

Most Frequent Histological Types of Borderline and Malignant Adnexal Masses in Pregnancy and Their Management

Prevalence	Histological Type	Histological Subtype
48.1%	Borderline	Serous, endometrioid, mucinous
21.6%	Epithelial tumors	Clear cell
		Endometrioid
		Low grade serous
		Mucinous
		High grade serous cancer
		Carcinosarcoma/undifferentiated/other
24.6%	Germ cell tumors	Dysgerminoma
		Yolk sac
		Immature Teratoma
0.5%	Sex cord stromal tumors	Sertoli, Lydig Tumor
		Granulosa cell tumor

Note: Based on the data puiblished by Aggarwal and Kehoe,⁴ Lockley et al,⁸ and Cavaco-Gomes et al.¹³