Last updated: Thursday, 11, November, 2010
Clinical assessment of likely cause; peritoneal fluid examination may be indicated if cause uncertain or infection suspected.
CA 125 may be elevated in any peritoneal disease and is not specific for ovarian cancer.
Gastric biopsy, colorectal biopsy.
See under Pancreatic neoplasm.
Primary peritonitis, especially in alcoholics, may present with few symptoms and signs of inflammation.