Ovarian cysts are a common ovarian disease in women. So what types of malignant ovarian tumors can be divided into? Ovarian tumors are common tumors of the female reproductive system. Ovarian malignancy is one of the three major malignant tumors of the female reproductive system. Due to the lack of effective diagnostic methods, the five-year survival rate of ovarian malignant tumors is still low, hovering between 25% and 30%. With the progress in the diagnosis and treatment of cervical cancer and endometrial cancer, ovarian cancer has become a tumor that seriously threatens women's lives. Ovarian tumor is a very common tumor of the female reproductive organ. Ovarian malignant tumor is one of the three major malignant tumors of the female reproductive organ. There is a very effective diagnostic method so far. The survival rate of ovarian malignant tumor is hovering between 25% and 30% for about 5 years. With the continuous development of the diagnosis and treatment of cervical cancer and endometrial cancer, ovarian cancer is gradually becoming a tumor that poses a serious threat to women. 1. Ovarian epithelial tumor: The age of onset is mostly between 30 and 60 years old. There are benign, borderline malignant and malignant types. Borderline malignant tumors refer to tumors with active epithelial cell proliferation and nuclear atypia, manifested by increased epithelial cell layers but no stromal infiltration. They are low-grade malignant tumors with slow growth, low metastasis rate and late recurrence. 1) Serous cystadenoma: common, accounting for about 25% of benign ovarian tumors. Most of them are unilateral, spherical, of varying sizes, smooth in surface, cystic, with thin walls, and filled with light yellow clear fluid. There are two types: simple and papillary. The former is mostly unilocular with smooth cystic walls; the latter is often multilocular with papillae visible inside, and occasionally grows outside the cyst. Microscopically, the cyst wall is composed of fibrous connective tissue, lined with a single layer of cubic or columnar epithelium, and psammoma bodies are seen in the interstitium, which are caused by calcium salt precipitation. The papillary branches are thicker. Borderline malignant serous cystadenomas are medium-sized, mostly bilateral, and have papillary growth less often within the cyst and more often grow outside the cyst. Microscopically, the papillary branches were slender and dense, the epithelial stratification did not exceed 3 layers, the cell nuclei were slightly atypical, the mitotic rate was <1/1HP, and there was no interstitial infiltration. The 5-year survival rate is over 90%. Serous cystadenocarcinoma is the most common ovarian malignancy, accounting for 40% to 50%. Most of them are bilateral, large in size, and semi-solid. Nodular or lobed, with a smooth surface, grayish white, or papillary hyperplasia, multi-chambered cross section, the cavity is filled with papillae, brittle, hemorrhagic, necrotic, and turbid cystic fluid. Microscopically, the cyst wall epithelium is significantly proliferative and arranged in stratified layers, usually with more than 4 to 5 layers. The cancer cells are cuboidal or columnar, with obvious cell atypia, and infiltrate into the interstitium. The 5-year survival rate is only 20% to 30%. Clinically, malignant mucinous gallbladder adenomas are generally relatively large, and a few are bilateral, with a relatively smooth surface and often multi-chambered. Thickening of the cyst wall can be seen in the front, and the parenchymal area is similar to the nipple, which is relatively small and soft. Mucinous cystadenocarcinoma accounts for 10% of malignant ovarian tumors. |
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