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Borderline ovarian tumours differ from epithelial ovarian cancer by their low incidence, frequent association with infertility, low association with mutations in BCRA genes, different percentages of the most common histological types, early stage diagnosis, and high survival rate, even when associated with peritoneal involvement.
The five-year survival rate of borderline tumors and malignant tumors confined to the ovaries are 100% and 70% respectively. If the peritoneum is involved, these rates become 90% and 25%. While the 5-year survival rates of borderline tumors are excellent, this should not be seen as evidence of cure, as recurrences can occur many years later.
The five-year survival rate for all stages of ovarian cancer is 46%; the one-year survival rate is 72% and the ten-year survival rate is 35%. [132] For cases where a diagnosis is made early in the disease, when the cancer is still confined to the primary site, the five-year survival rate is 92.7%. [ 133 ]
Ovarian cancer most often occurs after menopause with 50% of these cancers developing after age 63, the American Cancer Society notes. Symptoms of borderline ovarian tumors are the same as “any ...
10-year survival rates for mucinous tumors is excellent in the absence of invasion. In the case of borderline tumors confined to the ovary and malignant tumors without invasion, the survival rates are 90% or greater. In invasive mucinous cystadenocarcinomas, the survival is approximately 30%. Survival in metastasis is between 12 and 30 months. [5]
Tumor of the ovary vary remarkably as they may arise from any of the 3 cell types of the normal ovary. Ovarian tumors are classified according to the histology of the tumor, obtained in a pathology report. Histology dictates many aspects of clinical treatment, management, and prognosis. The most common forms are: