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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]
The tumors may be very small to very large, and may be solid or cystic. Histologically, the tumor consists of nests of the aforementioned transitional cells within surrounding tissue that resembles normal ovary. Brenner tumors may be benign or malignant, depending on whether the tumor cells invade the surrounding tissue.
Brenner Tumor of ovary. Malignant Brenner tumors are rare. Histologically, they have dense fibrous stroma with areas of transitional epithelium and some squamous differentiation. To be classified as a malignant Brenner tumor, it must have Brenner tumor foci and transitional cell carcinoma.
A fibroepithelial neoplasm (or tumor) is a biphasic tumor. They consist of epithelial tissue, and stromal or mesenchymal tissue. They may be benign or malignant. [1] Examples include: Brenner tumor of the ovary; Fibroadenoma of the breast; Phyllodes tumor of the breast; Sometimes fibroepithelial polyps (FEPs) of the vulva may be misdiagnosed as ...
Others include mainly malignant mixed Müllerian tumor, Brenner tumor and mixed epithelial tumor. [5] Brenner tumor. Sex cord-stromal tumor Ovarian fibroma: 1.5%: 0%: Spindle-shaped fibroblastic cells and abundant collagen. [11] Adult granulosa cell tumor: 1%: Almost 100%: Small, bland, cuboidal to polygonal cells in various patterns. [12 ...
A: One of more than 125 types of primary brain and other central nervous system tumors (including both benign and malignant tumors, but not including metastatic lesions) are diagnosed in about ...
Carcinosarcoma of the uterus. In gross appearance, MMMTs are fleshier than adenocarcinomas, may be bulky and polypoid, and sometimes protrude through the cervical os.On histology, the tumors consist of adenocarcinoma (endometrioid, serous or clear cell) mixed with the malignant mesenchymal elements; alternatively, the tumor may contain two distinct and separate epithelial and mesenchymal ...
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