This selection from the NCCN Guidelines for Ovarian Cancer focuses on the less common ovarian histopathologies (LCOHs), because new algorithms were added for LCOHs and current algorithms were revised for the 2016 update. The new LCOHs algorithms include clear cell carcinomas, mucinous carcinomas, and grade 1 (low-grade) serous carcinomas/endometrioid epithelial carcinomas. The LCOHs also include carcinosarcomas (malignant mixed Müllerian tumors of the ovary), borderline epithelial tumors (also known as low malignant potential tumors), malignant sex cord-stromal tumors, and malignant germ cell tumors.
Robert J. Morgan Jr, Deborah K. Armstrong, Ronald D. Alvarez, Jamie N. Bakkum-Gamez, Kian Behbakht, Lee-may Chen, Larry Copeland, Marta Ann Crispens, Maria DeRosa, Oliver Dorigo, David M. Gershenson, Heidi J. Gray, Ardeshir Hakam, Laura J. Havrilesky, Carolyn Johnston, Shashikant Lele, Lainie Martin, Ursula A. Matulonis, David M. O'Malley, Richard T. Penson, Sanja Percac-Lima, Mario Pineda, Steven C. Plaxe, Matthew A. Powell, Elena Ratner, Steven W. Remmenga, Peter G. Rose, Paul Sabbatini, Joseph T. Santoso, Theresa L. Werner, Jennifer Burns, and Miranda Hughes
Deborah K. Armstrong, Ronald D. Alvarez, Jamie N. Bakkum-Gamez, Lisa Barroilhet, Kian Behbakht, Andrew Berchuck, Lee-may Chen, Mihaela Cristea, Maria DeRosa, Eric L. Eisenhauer, David M. Gershenson, Heidi J. Gray, Rachel Grisham, Ardeshir Hakam, Angela Jain, Amer Karam, Gottfried E. Konecny, Charles A. Leath III, Joyce Liu, Haider Mahdi, Lainie Martin, Daniela Matei, Michael McHale, Karen McLean, David S. Miller, David M. O’Malley, Sanja Percac-Lima, Elena Ratner, Steven W. Remmenga, Roberto Vargas, Theresa L. Werner, Emese Zsiros, Jennifer L. Burns, and Anita M. Engh
Epithelial ovarian cancer is the leading cause of death from gynecologic cancer in the United States and is the country’s fifth most common cause of cancer mortality in women. A major challenge in treating ovarian cancer is that most patients have advanced disease at initial diagnosis. These NCCN Guidelines discuss cancers originating in the ovary, fallopian tube, or peritoneum, as these are all managed in a similar manner. Most of the recommendations are based on data from patients with the most common subtypes─high-grade serous and grade 2/3 endometrioid. The NCCN Guidelines also include recommendations specifically for patients with less common ovarian cancers, which in the guidelines include the following: carcinosarcoma, clear cell carcinoma, mucinous carcinoma, low-grade serous, grade 1 endometrioid, borderline epithelial, malignant sex cord-stromal, and malignant germ cell tumors. This manuscript focuses on certain aspects of primary treatment, including primary surgery, adjuvant therapy, and maintenance therapy options (including PARP inhibitors) after completion of first-line chemotherapy.