- All patients must have a procedure for determining diagnosis of epithelial ovarian, fallopian tube, primary peritoneal, with appropriate tissue for histologic evaluation; the minimum surgery required is an abdominal surgery providing tissue for histologic evaluation and establishing and documenting the primary site and stage, as well as a maximal effort at tumor debulking; if additional surgery was performed, it should have been in accordance with appropriate surgery for ovarian or peritoneal carcinoma described in the GOG Surgical Procedures Manual (https://www.gog.fccc.edu/manuals/pdf/surgman.pdf) (11/02/2009)(08/16/2010)