What does borderline mucinous tumor mean?

The World Health Organization criteria for the diagnosis of intestinal-type mucinous borderline tumor include the following elements: tumors contain cystic spaces lined by gastrointestinal-type mucinous epithelium with stratification and may form filiform papillae with at least minimal stromal support; nuclei are …

What is Dysgerminoma of the ovary?

(DIS-jer-mih-NOH-muh) A type of cancer that begins in germ cells in females. Germ cells are cells that form sperm in males or eggs in females. Dysgerminomas occur most often in the ovaries, but they may also occur in other areas of the body, including the central nervous system.

Can a borderline tumor become cancer?

The main treatment for borderline tumours is surgery. Most women are cured and have no further problems. There is a small risk of the tumour coming back. Very rarely, the borderline tumour cells change into cancer cells.

What is endometrioid?

Endometrioid tumors are a class of tumor characterized by a resemblance to endometrium/ endometrial carcinoma, and over a third of cases have focal squamous differentiation.

What is the histologic feature that differentiates borderline ovarian tumors from invasive ovarian cancers?

Increase in nuclear/cytoplasmic ratio. Slight to complex branching of epithelial papillae and pseudopapillae. Epithelial budding and cell detachment into the lumen. No destructive stromal invasion – A major component in differentiating malignant from borderline tumors.

What causes mucinous ovarian tumor?

An international study has revealed the origin of mucinous ovarian cancer, confirming that unlike other types of ovarian cancer, this cancer arises from benign and borderline precursors at the ovaries and are not extraovarian metastases.

What is the most common malignant ovarian tumor?

Epithelial ovarian cancer, which arises from the surface of the ovary (the epithelium), is the most common ovarian cancer. Fallopian Tube Cancer and Primary Peritoneal Cancer are also included within this designation. Germ Cell ovarian cancer arises from the reproductive cells of the ovaries, and is rare.

Do borderline tumors spread?

Observation is often recommended for borderline tumors because they grow very slowly and even when they spread they are rarely fatal.

Can borderline tumors grow back?

Although the risk of recurrence is low overall, some borderline tumors can recur several years after initial diagnosis. It is rare, but borderline tumors can recur as slow-growing, low-grade cancers that require more aggressive treatment.