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Difference between revisions of "Papillary"
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''Papillary pattern'' redirect here. | ''Papillary pattern'' redirect here. | ||
==General== | |||
*Common histomorphologic pattern that is seen in a large number of contexts. | |||
==Microscopy== | |||
Histologic definition - papilla: | |||
*Nipple-shaped structure containing at least one blood vessel. | |||
Note: | |||
*May be associated with [[psammoma bodies]]. | |||
DDx: | |||
*Micropapilla - nipple-shaped structure without blood vessels. | |||
*Pseudopapilla - cells distant from the blood vessels undergo [[necrosis]] imparting a papillary-like appearance, e.g. [[solid pseudopapillary tumour]]. | |||
==Some entities with the word ''papillary''== | ==Some entities with the word ''papillary''== | ||
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===Gastrointestinal pathology=== | ===Gastrointestinal pathology=== | ||
*[[Solid and papillary epithelial neoplasm]]. | *[[Solid and papillary epithelial neoplasm]] - actually ''pseudopapillary''; also known as ''solid pseudopapillary tumour''. | ||
*[[Intraductal papillary mucinous tumour]]. | *[[Intraductal papillary mucinous tumour]]. | ||
*Biliary intraductal papillary neoplasm. | *Biliary intraductal papillary neoplasm. | ||