[Giant ovarian cyst and pregnancy. Case report and literature review].

Ovarian tumors represent approximately 30% of genital tumors, being the most frequent the germ and the epithelial tumors. During pregnancy the incidence of ovarian cysts is less than 5%, and they are almost always benign. Giant cysts have a frequency of less than 1%. A giant cyst in a primigravida 20 years, 15 weeks pregnant and the evolution of the same case is reported.