Epithelial Ovarian Cancer

• Epithelial Ovarian Cancer is the most prevalent form of ovarian cancer, originating from the outer layer of the ovaries.
• Symptoms are often vague and can mimic other conditions, making early diagnosis challenging.
• Risk factors include age, family history, and certain genetic mutations like BRCA1 and BRCA2.
• Treatment typically involves a combination of surgery and chemotherapy, with targeted therapies also playing a role.
• Early detection significantly improves prognosis, highlighting the importance of recognizing potential signs.

What is Epithelial Ovarian Cancer?

Epithelial Ovarian Cancer refers to a group of cancers that begin in the epithelial cells covering the outer surface of the ovaries. This type accounts for approximately 85% to 90% of all ovarian cancers, making it the most common form. It can also arise from the fallopian tubes or the peritoneum, the lining of the abdomen and pelvis, which are often grouped with ovarian cancer due to their similar cellular origins and treatment approaches. The disease is often diagnosed at an advanced stage because early symptoms are typically subtle and non-specific, leading to a more challenging prognosis.

The ovaries are a pair of small, almond-shaped organs located in the pelvis, responsible for producing eggs and female hormones. When epithelial cells on their surface grow uncontrollably, they can form tumors that may spread to other parts of the body. According to the American Cancer Society, ovarian cancer is the fifth leading cause of cancer-related death among women in the United States, with epithelial types being the most significant contributor to this statistic.

Symptoms and Risk Factors for Epithelial Ovarian Cancer

Recognizing epithelial ovarian cancer symptoms can be difficult because they are often vague and can be mistaken for less serious conditions, particularly in the early stages. These symptoms tend to be persistent and worsen over time, rather than coming and going. If you experience these symptoms frequently (more than 12 times a month) and they are new to you, it is important to consult a healthcare professional.

Common symptoms include:

• Bloating or increased abdominal size
• Pelvic or abdominal pain
• Difficulty eating or feeling full quickly
• Urinary urgency or frequency
• Changes in bowel habits, such as constipation
• Fatigue and unexplained weight loss

The exact causes of epithelial ovarian cancer are not fully understood, but several risk factors have been identified. These factors increase a woman’s likelihood of developing the disease, though many women with risk factors never develop cancer, and some without known risk factors do. Key risk factors include increasing age, a family history of ovarian or breast cancer, and inherited genetic mutations such as BRCA1 and BRCA2. Other factors include a personal history of endometriosis, never having been pregnant, and certain fertility treatments. Conversely, factors like oral contraceptive use, pregnancy, and breastfeeding may reduce the risk.

Epithelial Ovarian Cancer Treatment Options

The approach to epithelial ovarian cancer treatment is highly individualized, depending on the stage and grade of the cancer, the patient’s overall health, and other specific factors. The primary goal of treatment is to remove as much of the cancer as possible and prevent its recurrence. Treatment typically involves a combination of surgery and chemotherapy, which are often used sequentially or concurrently.

Surgery is usually the first step for most patients, aiming to remove the tumor, ovaries, fallopian tubes, uterus, and any visible spread of cancer in the abdomen (a procedure known as debulking surgery). Following surgery, chemotherapy is commonly administered to kill any remaining cancer cells. Chemotherapy drugs are often given intravenously and may include platinum-based agents and taxanes. In some cases, chemotherapy may be given before surgery (neoadjuvant chemotherapy) to shrink tumors and make them easier to remove.

Beyond surgery and chemotherapy, other treatment modalities are becoming increasingly important. Targeted therapy drugs focus on specific vulnerabilities in cancer cells, while immunotherapy harnesses the body’s immune system to fight cancer. These advanced treatments are often used for recurrent cancer or in specific genetic subtypes of epithelial ovarian cancer, offering new avenues for improving patient outcomes and quality of life.