A cancerous growth that develops in many different parts of the ovary is known as ovarian cancer. Ovaries are basically a pair of female reproductive glands that helps in the formation of eggs or ova. A number of ovarian cancers occur from the epithelium (outer lining) of the ovary. A majority of these cancers are either malignant germ cell tumors or ovarian epithelial carcinomas.
There are a number of tumors that may start in the ovaries. These tumors can be benign (non-cancerous) or malignant (cancerous). These tumors can be categorized into three types –
Stromal Tumors: These tumors begin from those cells that are responsible for holding the ovary together and also for making female hormones.
Germ Cell Tumors: These tumors begin from those cells that are responsible for producing the eggs.
Epithelial Tumors: These tumors begin from those cells which cover the outer surface of the ovary. A majority of ovarian tumors are epithelial tumors. Serous is considered as the most common type of epithelial cancers.
Ovarian cancer is considered as one of the most common cancer among women. Some of its major causes include –
The progression of ovarian cancer may result into following symptoms that include –
Stage 1: In the very first stage, the cancer growth is limited to the ovaries or ovary.
Stage 1A: Here the cancer growth is only in one ovary and the tumor is there within the ovary. No cancer can be seen on the outer surface of the ovary. Also, no Ascites are present that contain malignant cells. Here the capsule is also intact.
Stage 1B: The cancer growth is restricted to only ovaries and there is no tumor present on the outer surfaces of these ovaries. Also, no Ascites is present that contain malignant cells. Here also the capsule is intact.
Stage 1C: The tumor can be stage 1A or stage 1B and some of the conditions may also be present – Ascites are there that contain malignant cells, tumor is present on the outer surface of one or more ovaries or the capsules has broken.
Stage 2: The second stage is categorized with the cancer growth that includes one or both ovaries with pelvic extension.
Stage 2A: The cancer may have extended to or it may also involve Fallopian tubes or the uterus. Sometimes both of them can also be involved.
Stage 2B: Now the cancer has spread to other pelvic organs.
Stage 2C: Here in this stage, the tumor can be categorized in either stage 2A or stage 2B and some of the conditions may also be present such as Ascites that contain malignant cells or with positive peritoneal washings, the capsule has broken and tumor is there on the outer surface of one or both ovaries.
Stage 3: One or both ovaries may be involved by the cancer growth and some other conditions may also be there such as the cancer may have spread to lymph nodes and the cancer may also spread beyond the pelvis to the abdomen lining.
Stage 3A: The cancer may involve one or both the ovaries. The cancer can be seen in the abdomen but has not spread to lymph nodes.
Stage 3B: Presence of the tumor is there in one or both ovaries and the cancer deposits can be seen in the abdomen. These deposits are of about 2cm in diameter that makes them easy for a surgeon to view. Lymph nodes are not affected by the cancer.
Stage 3C: Presence of the tumor can be seen in one or both ovaries and some of the conditions may also be there such as the cancer deposits that are not more than 2 cm in diameter and can be found in the abdomen, and the cancer has spread to lymph nodes.
Stage 4: Fourth stage is considered as the most advanced stage of ovarian cancer. The growth of the cancer includes one or both ovaries and distant metastases have also occurred. In this advanced stage, the ovarian cancer cells can be found in pleural fluid.
A pelvic exam is performed for examining rectum, vagina and lower abdomen for growths or masses. If the growths are visible on ovaries then certain other tests are also performed for producing detailed images of the ovaries. Some of the tests include –
Radiation therapy, surgery and chemotherapy are the treatment options for treating ovarian cancer.
Radiation Therapy: This therapy makes use of high-energy beams for destroying cancer cells. This therapy helps in eliminating cancer that may be encompassed inside a radiation field. This therapy can be either internally or externally delivered. Internal radiation (Brachytherapy) is delivered by implanting a small amount of radioactive material surrounding the cancer. High-energy rays are delivered in external radiation that is directed to the tumor site through a machine outside the body.
Surgery: Three types of surgeries are involved in treating ovarian cancer such as –
Chemotherapy: Anticancer drugs are used for destroying the remaining cancer cells after surgery. Women who have advanced ovarian cancer may be given chemotherapy as the initial treatment. The injection of these drugs can be done in a vein or directly into the abdominal cavity. These drugs can be either used alone or in combination.
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