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*Clear cells - with moderate nuclear pleomorphism - '''key feature'''. | *Clear cells - with moderate nuclear pleomorphism - '''key feature'''. | ||
**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. | ||
*Usually tubular/cystic, may be solid or papillary. | *Usually tubular/cystic, may be solid or papillary. | ||
**Papillae may be pseudopapillae -- with edema instead of vessels. | **Papillae may be pseudopapillae -- with edema instead of vessels. |
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