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Five years after surgery, event-free survival was 92.2% and 85.9%, respectively, and overall survival was 99% and 95.1%. [51] A similar study in Italy reported on 183 infants and children diagnosed with teratoma. At 10 years after surgery, event-free and overall survival were 90.4% and 98%, respectively. [52]
A dermoid cyst is a teratoma of a cystic nature that contains an array of developmentally mature, solid tissues. It frequently consists of skin, hair follicles, and sweat glands, while other commonly found components include clumps of long hair, pockets of sebum, blood, fat, bone, nail, teeth, eyes, cartilage, and thyroid tissue.
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]
Although most cases of ovarian cysts are monitored and stabilize or resolve without surgery, some cases require surgery. [35] Common indications for surgical management include ovarian torsion, ruptured cyst, concerns that the cyst is cancerous, and pain; [11] some surgeons additionally recommend removing all large cysts. [11]
Ovarian squamous cell carcinoma (oSCC) or squamous ovarian carcinoma (SOC) is a rare tumor that accounts for 1% of ovarian cancers. [1] Included in the World Health Organization 's classification of ovarian cancer, [ 2 ] it mainly affects women above 45 years of age.
In the past, survival rates were low for high-grade immature teratomas. Norris et al. (1976), reported a survival rate of 82% for patients with grade 1 tumors, 62% for grade 2 and 30% for grade 3 tumors. [23] However, these results antedate the use of multi-agent chemotherapy. [8]
For other regions, the incidence rates reported are 2.5% in Oceania, 2.0% in North America and 1.3% in Europe. [3] The five-year survival rates have reached up to 90-92%, which is much higher than that of epithelial ovarian cancers. [27] The main reason is the high effectiveness of platinum-based chemotherapy. [1]
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]