月归档:十月 2012

Benign Brenner Tumor with Mucinous Cystadenoma良性布伦纳瘤粘液性囊腺瘤3

Note the abrupt transition from mucinous cystadenoma to Brenner tumor within the same cystic space.

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Benign Brenner Tumor with Mucinous Cystadenoma良性布伦纳瘤粘液性囊腺瘤

High power view of the previous image showing mucinous cystadenoma arising in association with a benign Brenner tumor.

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Benign Brenner Tumor with Mucinous Cystadenoma良性布伦纳瘤粘液性囊腺瘤

In about 25% of cases of Brenner tumor, another type of tumor may be present. In the majority of such cases, the second tumor is a mucinous cystic tumor. The image shows a benign Brenner tumor on the right in … 继续阅读

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Benign Brenner Tumor 良性布伦纳瘤囊性4

Brenner tumor may have small or large cysts. Often, these cysts are lined by mucinous epithelium beneath which are transitional epithelium-type cells (as shown here).

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Benign Brenner Tumor 良性布伦纳瘤3

Irregular nests of benign transitional (urothelial) cells are scattered in dense hyalinized stroma in this benign Brenner tumor.

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Benign Brenner Tumor 良性布伦纳瘤2

Nests of transitional cells with pale cytoplasm scattered in a dense stroma. The stromal component usually resembles an ovarian fibroma and may contain luteinized cells. Estrogen secretion by stromal cells may occasionally result in endocrine manifestations.

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Brenner Tumor 布伦纳瘤2

The transitional epithelial cells have sharply defined outlines, oval nuclei with longitudinal grooves, and small or inconspicuous nucleoli.

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Benign Brenner Tumor 良性布伦纳瘤

The Brenner tumors are composed of solid and cystic nests of epithelium resembling transitional epithelium in a dense fibroblastic stroma.

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Brenner Tumor 布伦纳瘤

Brenner tumors comprise 1% to 2% of all ovarian tumors. Grossly, they are firm, yellowish white, and usually circumscribed. Small cystic areas may be present. Image courtesy of : Ed Uthman, MD, Houston, Texas.

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Clear Cell Carcinoma 透明细胞癌7

Prominent vacuoles within tumor cells create a signet-ring cell appearance in this clear cell carcinoma of the ovary.

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