• The tumors result from either failure of a dominant mature follicle to rupture or failure of an immature follicle to undergo the normal process of atresia. (medscape.com)
  • The larger varieties are associated with an increased risk of rupture, with resultant pseudomyxoma peritonei. (medscape.com)
  • A systematic review and meta-analysis by Liu et al found that the malignancy rate, including borderline tumors, for simple ovarian cysts in postmenopausal women was approximately 1 in 10,000. (medscape.com)
  • Ovarian borderline tumors, also known as low malignant potential (LMP) ovarian tumors, do not cause an increase in CA125 levels and are not identifiable with an ultrasound. (wikipedia.org)
  • The tumors are generally multilocular, and the mucus-containing loculi appear blue through the tense capsules. (medscape.com)
  • Epithelial ovarian tumors are the most common tumor subtype. (amboss.com)
  • Symptoms can vary based on the subtype. (wikipedia.org)
  • The ovary is made up of three different cell types including epithelial cells, germ cells, and stromal cells. (wikipedia.org)
  • Less common types of ovarian cancer include germ cell tumors and sex cord stromal tumors. (wikipedia.org)
  • The diagnosis is often made based on clinical signs and symptoms of acute appendicitis or coincidentally via imaging methods when it is asymptomatic. (acquaintpublications.com)
  • Acute liver failure may progress to exhibit cerebral dysfunction even HEPATIC COMA depending on the etiology that includes hepatic ISCHEMIA, drug toxicity, malignant infiltration, and viral hepatitis such as post-transfusion HEPATITIS B and HEPATITIS C. (lookformedical.com)
  • A 2-year interim analysis from the International Ovarian Tumor Analysis Phase 5 (IOTA5) study showed that 80% of ovarian cysts considered benign on ultrasonography either disappeared or required no intervention. (medscape.com)
  • One third of all ovarian tumors are serous, and two thirds of these serous tumors are benign. (medscape.com)
  • Of these tumors, 75% are benign and are found in women aged 30-50 years. (medscape.com)
  • The ovaries consist of different types of tissue ( epithelial , germ cells, and sex cord tissue), which may give rise to benign or malignant tumors . (amboss.com)
  • It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. (lookformedical.com)
  • Solid epithelial ovarian tumors are almost invariably malignant. (medscape.com)
  • Most are malignant except the insulin-producing tumors (INSULINOMA). (lookformedical.com)
  • By definition, serous tumors are characterized by a proliferation of epithelium resembling that lining the fallopian tubes. (medscape.com)
  • Epithelial cystic tumors account for about 60% of all true ovarian neoplasms. (medscape.com)
  • Mucinous epithelial tumors account for approximately 10-15% of all epithelial ovarian neoplasms. (medscape.com)
  • Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included. (lookformedical.com)
  • Mucocele may also develop when the lumen is obstructed due to endometriosis or carcinoid tumors. (acquaintpublications.com)
  • Female urinary system Your urinary system - which includes the kidneys, ureters, bladder and urethra - is responsible for removing waste from your body through urine. (cancerhealthcenter.com)
  • Ovarian cancer is a cancerous tumor of an ovary. (wikipedia.org)
  • Early signs and symptoms of ovarian cancer may be absent or subtle. (wikipedia.org)
  • Later symptoms of ovarian cancer are due to the growing mass causing pain by pressing on other abdominopelvic organs or from metastases. (wikipedia.org)
  • If these symptoms start to occur more often or more severely than usual, especially after no significant history of such symptoms, ovarian cancer is considered. (wikipedia.org)
  • In both procedures, chemotherapy is injected into the hepatic (liver) artery that supplies the liver tumor. (cancerhealthcenter.com)
  • Common areas to which the cancer may spread include the lining of the abdomen, lymph nodes, lungs, and liver. (wikipedia.org)
  • Tumors or cancer of the LIVER. (lookformedical.com)
  • Experimentally induced tumors of the LIVER. (lookformedical.com)
  • However, it may rarely receive a definitive diagnosis before surgery despite all technical possibilities, and it may be encountered during abdominal surgery performed for another indication. (acquaintpublications.com)
  • When these cells become abnormal, they have the ability to divide and form tumors. (wikipedia.org)
  • In a 16-year-old female virgin presented with recurrent lower abdominal pain, urine retention, and secondary amenorrhea after 3 hymenectomy surgeries. (endometriosi.it)
  • Treatment usually includes some combination of surgery, radiation therapy, and chemotherapy. (wikipedia.org)
  • The typical symptoms of an LMP tumor can include abdominal distension or pelvic pain. (wikipedia.org)
  • Imperforate hymen prevents menstrual blood drainage, which causes cyclic lower abdominal pain and amenorrhea. (endometriosi.it)
  • Mucinous tumors are most common in the third to fifth decades of life and are only rarely bilateral. (medscape.com)
  • In most cases, symptoms exist for several months before being recognized and diagnosed. (wikipedia.org)
  • Other risk factors include hormone therapy after menopause, fertility medication, and obesity. (wikipedia.org)
  • Factors that decrease risk include hormonal birth control, tubal ligation, pregnancy, and breast feeding. (wikipedia.org)
  • Total abdominal hysterectomy and bilateral salpingo-oophorectomy (with or without staging) are reasonable options and are recommended by many authorities for women of perimenopausal age. (medscape.com)
  • When this process begins, there may be no or only vague symptoms. (wikipedia.org)