月归档:四月 2013

Complete Hydatidiform Mole : Cytologic Atypia in Trophoblast完全性葡萄胎:异型的滋养层

Haphazard circumferential proliferation of cytotrophoblast and syncytiotrophoblast is seen around individual villi in this image. Some of the nuclei show considerable atypia.

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Complete Hydatidiform Mole完全性葡萄胎3

The image shows a large villus distended with abundant stromal fluid and formation of a cistern. Strands of fibrillar material are seen within and around the cistern. Trophoblastic proliferation is seen below the villus.

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书法47

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Complete Hydatidiform Mole完全性葡萄胎2

Low-power view of a complete mole showing vesicular swelling of chorionic villi and trophoblastic hyperplasia (seen here as eosinophilic nests and clusters). The severity of these changes varies from villus to villus. Fetal stromal blood vessels are usually absent.

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Complete Hydatidiform Mole完全性葡萄胎

Complete hydatidiform mole almost always lacks an embryo/fetus. Before the widespread use of pelvic ultrasound during pregnancies, complete mole usually presented between 11 and 25 weeks with vaginal bleeding and/or excessive uterine enlargement for gestational age. The hCG levels are … 继续阅读

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书法46

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Chorangioma 绒毛膜血管瘤9

High power view of a partial mole showing fibrosis of the villous stroma. Most partial moles are triploid (69,XXX; 69,XXY; 69,XYY). The extra chromosomal haploid set comes from the father. A few cases show trisomy 16. Modest elevation of serum … 继续阅读

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书法45

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Partial Hydatidiform Mole 部分性葡萄胎

Partial mole makes up between 15% to 35% of all molar pregnancies. An embryo (abnormal) is usually present and the placenta contains an admixture of normal-appearing and vesicular villi. This low power image of a partial mole shows several hydropic … 继续阅读

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书法44

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