月归档:九月 2012

Endometrioid Borderline Tumor内膜交界性肿瘤

Low-power view of an endometrioid borderline tumor showing numerous endometrioid glands scattered in a cellular stroma. Squamous metaplasia is readily evident.

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Endometrioid Cystadenoma子宫内膜样腺样囊腺瘤

The glands resemble normal endometrium. Stroma is moderately cellular. Many of these tumors arise from endometriosis.

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Endometrioid Cystadenoma宫内膜样腺瘤和囊腺瘤

Endometrioid cystadenomas are lined by cuboidal or columnar epithelium lacking cytologic atypia. Note the resemblance of glands to normal endometrial lining.

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Endometrioid Adenofibroma子宫内膜样腺纤维瘤

In some cases of endometrioid adenofibroma, the glands may have complex villoglandular or cribriform pattern instead of simple outlines.

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Endometrioid Adenofibroma子宫内膜样腺纤维瘤

High power view of the previous image showing glands and squamous morules. Squamous morules may be associated with loose stromal reaction which should not be mistaken for desmoplasia of cancer.

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Endometrioid Adenofibroma子宫内膜样腺纤维瘤

The tumor consists of endometrioid glands lined by cuboidal or columnar epithelium scattered in abundant fibrous stroma. Squamous morules are also present.

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Mucinous Cystadenocarcinoma 粘液性囊腺癌2

Another case of mucinous cystadenocarcinoma with confluent glands and high-grade nuclear features

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Mucinous Cystadenocarcinoma 粘液性囊腺癌

The cyst wall in this case showed papillae and cribriform glands lined by highly atypical cells with frequent mitoses. The underlying stroma was penetrated by nests of malignant cells with desmoplastic response.

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Endocervical-like Mucinous Borderline Tumor子宫颈内膜样黏液性交界性肿瘤

Another endocervical-like mucinous borderline tumor showing papillary morphology and abundant neutrophils within the epithelium, stroma and luminal mucin.

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Endocervical-like Mucinous Borderline Tumor子宫颈内膜样黏液性交界性肿瘤

The atypical cells lining the cyst wall have abundant eosinophilic cytoplasm and form small cellular papillae infiltrated by neutrophils. Neutrophils are also usually present in the luminal mucin.

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