TY - CHAP M1 - Book, Section TI - Ovarian Germ Cell and Sex Cord–Stromal Tumors A1 - Hoffman, Barbara L. A1 - Schorge, John O. A1 - Halvorson, Lisa M. A1 - Hamid, Cherine A. A1 - Corton, Marlene M. A1 - Schaffer, Joseph I. PY - 2020 T2 - Williams Gynecology, 4e AB - Three major categories account for virtually all malignant ovarian tumors. Organization of these groups is based on the anatomic structures from which the tumors originate (Fig. 36-1). Epithelial ovarian cancers account for 90 to 95 percent of malignant ovarian tumors (Chap. 35, p. 732). Germ cell and sex cord–stromal ovarian tumors account for the remaining 5 to 10 percent and have unique qualities that require special management (Quirk, 2005). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - obgyn.mhmedical.com/content.aspx?aid=1171663565 ER -