月归档:九月 2012

Clear Cell Adenofibroma 透明细胞腺纤维瘤2

Dilated glands may create a sponge-like appearance in gross specimens. The lining epithelial cells have abundant clear cytoplasm and lack atypia.

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Clear Cell Adenofibroma 透明细胞腺纤维瘤

Clear Cell Adenofibroma: This is a rare benign ovarian tumor consisting of glands lined by cuboidal or flattened cells with clear cytoplasm. The glands are separated by fibroblastic stroma.

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Endometrioid Carcinoma – Low Grade低级别内膜癌

Another focus of squamous metaplasia in a well-differentiated ovarian endometrioid carcinoma.

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Endometrioid Carcinoma with Squamous Metaplasia内膜癌伴鳞化

Squamous metaplasia is seen in as many as 50% of ovarian endometrioid carcinomas. Such tumors have also been referred to as adenoacanthomas.

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Endometrioid Carcinoma子宫内膜样癌5

The glands are more closely packed in this well-differentiated endometrioid carcinoma of the ovary (same case as previous image).

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Endometrioid Carcinoma子宫内膜样癌4

Well-differentiated endometrioid carcinoma of the ovary with abundant luminal mucin.

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Endometrioid Carcinoma子宫内膜样癌3

Malignant glands are separated by abundant stroma

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Endometrioid Carcinoma子宫内膜样癌

High power view of the previous image. Nuclei are stratified. Cytologic atypia and mitotic figures are readily evident. About 10%-20% of ovarian endometrioid carcinomas are associated with endometriosis.

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Endometrioid Carcinoma子宫内膜样癌

Well-differentiated endometrioid carcinoma of the ovary showing villoglandular pattern. The glandular areas are lined by stratified columnar epithelium. Endometrioid carcinomas make up 10% to 25% of all primary ovarian carcinomas.

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Endometrioid Borderline Tumor内膜交界性肿瘤

Endometrioid borderline tumor showing mild to moderate cytologic atypia in the neoplastic epithelium. The glands are surrounded by squamous morules.

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