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Ovarian tumours by incidence and risk of ovarian cancer, with adult granulosa cell tumour at right [7] Using next generation DNA sequencing, 97% of adult granulosa cell tumours were found to contain an identical mutation in the FOXL2 gene . This is a somatic mutation, meaning it is not usually transmitted to descendants.
Ovarian cancer is a cancerous tumor of an ovary. [10] It may originate from the ovary itself or more commonly from communicating nearby structures such as fallopian tubes or the inner lining of the abdomen. [3] [11] The ovary is made up of three different cell types including epithelial cells, germ cells, and stromal cells. [12]
In medicine, Meigs's syndrome, also Meigs syndrome or Demons–Meigs syndrome, is the triad of ascites, pleural effusion, and benign ovarian tumor (ovarian fibroma, fibrothecoma, Brenner tumour, and occasionally granulosa cell tumour). [1] [2] [3] Meigs syndrome resolves after the resection of the tumor. Because the transdiaphragmatic lymphatic ...
Ovarian tumors, or ovarian neoplasms, are tumors in the ovary. [1] Not all are ovarian cancer. [1] They consist of mainly solid tissue, while ovarian cysts contain fluid. [2]In 2020, the World Health Organization (WHO) divided ovarian tumours as 90% epithelial, 3% germ cell, and 2% sex cord-stromal types.
The larger ovarian follicles consist of an external fibrovascular coat, connected with the surrounding stroma of the ovary by a network of blood vessels, and an internal coat, which consists of several layers of nucleated cells, called the membrana granulosa. It contains numerous granulosa cells.
A very rare tumour producing both ovarian (granulosa and/or theca) and testicular (Sertoli and/or Leydig) cells or tissues. Typically it consists of adult-type granulosa cells and Sertoli cells, [4] [5] but it has been reported with juvenile-type granulosa cells. [6] It has been reported to occur in the ovary usually, rarely in the testis. [7]
Cystadenocarcinoma is a malignant form of a cystadenoma and is a cancer derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. The neoplastic cells manifest varying degrees of anaplasia and invasiveness, and local extension and metastases occur.
Brenner tumours are an uncommon subtype of the surface epithelial-stromal tumour group of ovarian neoplasms. The majority are benign, but some can be malignant. [1] They are most frequently found incidentally on pelvic examination or at laparotomy. [2] Brenner tumours very rarely can occur in other locations, including the testes. [3]