Ovarian cancer

Disease Description (Causes and Symptoms)

• Definition: Ovarian cancer is a malignant tumor that develops in the ovaries (organs responsible for follicle formation and secretion of female hormones), and its prognosis varies depending on the stage and pattern of metastasis.
• Causes and risk factors:
  • No single exact cause is known. Genetic predisposition (especially BRCA1/2 mutations and a family history) increases the risk.
  • Associated with a personal or family history of breast, uterine, or colorectal cancer.
  • Conditions involving a greater number of ovulations (earlier menarche or fewer childbirths) increase the risk; conversely, pregnancy, breastfeeding, and contraception (ovulation suppression) reduce the risk.
  • Associations with obesity, certain environmental factors (evidence of increased incidence among residents of developed countries and urban areas), infections, and other factors have been reported.
• Summary of pathophysiology:
  • The tumor may be localized in the early stage, but it can easily spread to the surfaces of organs within the abdominal cavity, the omentum, and pelvic structures, causing multiple tumors within the abdominal cavity and ascites.
  • In advanced cases, metastasis to distant organs such as the liver, lungs, and brain is possible.
• Main symptoms:
  • In the early stages, there may be no symptoms or nonspecific symptoms (abdominal discomfort, bloating, and loss of appetite).
  • In advanced cases: abdominal distension and a palpable mass, pelvic pain, abdominal pain, ascites, back pain, and abnormal vaginal bleeding (rarely).
  • It is common for the disease to already be advanced when patients visit the hospital because of symptoms.

Treatment Methods

• Basic principles:
  • Whenever possible, complete cytoreductive surgery (surgical removal of the tumor) is followed by adjuvant (or neoadjuvant) chemotherapy depending on the stage and the patient's condition.
• Surgery:
  • Standard treatment: total hysterectomy (uterus + both ovaries and fallopian tubes), omentectomy, and, if necessary, lymph node dissection and removal of tumors within the abdominal cavity (with the goal of leaving residual tumors no larger than 1 cm).
  • If the disease is confined to an early stage and fertility preservation is desired, limited surgery (such as removal of only one ovary) may be considered (depending on the circumstances).
• Chemotherapy:
  • Standard first-line combination therapy: intravenous platinum-based (carboplatin) + taxane-based (paclitaxel) treatment.
  • For advanced or recurrent disease, targeted therapy (e.g., PARP inhibitors—used as maintenance therapy in patients with BRCA mutations) and antiangiogenic agents (bevacizumab) may be considered.
• Other treatments:
  • In some patients, cytoreductive surgery is performed after neoadjuvant chemotherapy.
  • Local treatments (intraperitoneal chemotherapy and radiation therapy) are applied selectively. HIPEC (hyperthermic intraperitoneal chemotherapy) and other treatments may be considered in research settings or at specialized centers.
• Supportive care and lifestyle management:
  • Nutritional management, pain and symptom relief (ascites drainage and analgesics), antiemetic treatment, anemia treatment, and regular follow-up examinations.
• Precautions, risk of complications, and self-care:
  • Monitoring is necessary for acute treatment-related side effects (myelosuppression, infection, nausea and vomiting, peripheral neuropathy, etc.).
  • After surgery, the risk of intestinal or bladder injury, intestinal obstruction, and thrombosis (venous thromboembolism) is increased.
  • Long-term issues include the possibility of recurrence, hormone deficiency (when the ovaries are removed), and possible loss of fertility—if pregnancy is desired, consultation in advance is recommended.
  • During treatment, immediately visit a medical institution if fever, difficulty breathing, severe pain, or abnormal bleeding occurs.

Outpatient Visit Checklist (Preparation and Example Questions)

• Items/materials to prepare:
  • List of medications and supplements currently being taken (including dosage and administration times)
  • Past medical history and family history (especially related to breast, ovarian, uterine, and colorectal cancer)
  • Recent test results (ultrasound, CT/MRI images, blood test results, tumor markers such as CA‑125) or imaging CDs/reports
  • Symptom records (when symptoms began, patterns of worsening or improvement, changes in eating or bowel movements, weight changes, fever, etc.)
  • Pregnancy and childbirth history (including whether pregnancy is desired)
• Information to tell the doctor first during the outpatient visit:
  • Whether there is new pain or fever, bleeding, or difficulty breathing
  • Recent history of chemotherapy or surgery and experience of side effects
• Example question (for the patient’s reference):
  • Prepare a summary of when changes in symptoms (such as pain and abdominal bloating) began, how they have progressed, and whether you have any drug allergies.

General Example Questions to Ask the Doctor

• What is the stage of this disease, and what is my current expected prognosis?
• What treatment options (surgery, chemotherapy, and targeted therapy) are recommended, and what are the advantages, disadvantages, and expected side effects of each treatment?
• Is genetic testing (such as BRCA testing) necessary? How will the test results affect treatment?
• I would like to preserve my fertility (possibility of pregnancy). What options are available?
• What should I be careful about regarding daily life (exercise, diet, and returning to work) during and after treatment?

Examples of Disease-Specific Questions

• In my case (based on imaging and test results), how likely is complete removal through abdominal cytoreductive surgery? What is the target size for residual tumors after surgery?
• If testing for BRCA or other genetic mutations is positive, which targeted treatments (e.g., PARP inhibitors) can be applied and when? What are the indications for maintenance therapy and its expected side effects?

(If necessary, preparing the results of relevant tests, such as detailed imaging, CA‑125, and genetic testing, will help ensure a smooth consultation.)