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===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
*Clear cells: | *Clear cells - with moderate nuclear pleomorphism: | ||
**Classically clear cells... but not always. | **Classically clear cells... but not always. | ||
*Hobnail pattern -- apical cytoplasm > cytoplasm on basement membrane. | *Hobnail pattern -- apical cytoplasm > cytoplasm on basement membrane. | ||
DDx: | |||
*[[Serous endometrial carcinoma]] - usually has more nuclear atypia. | |||
===IHC=== | ===IHC=== |
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