Difference between revisions of "Papillary"
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In [[pathology]], '''papillary''' refers to a nipple-like projection with a fibrovascular core. | In [[pathology]], '''papillary''' refers to a nipple-like projection with a fibrovascular core. | ||
''Papillary pattern'' | ''Papillary pattern'' redirects here. | ||
==General== | ==General== | ||
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==Microscopy== | ==Microscopy== | ||
Histologic definition - papilla: | Histologic definition - papilla: | ||
*Nipple-shaped structure | *Nipple-shaped structure consisting of epithelium on a fibrovascular core. | ||
**''Fibrovascular core'' = fibrous tissue + least one blood vessel. | **''Fibrovascular core'' = fibrous tissue + least one blood vessel. | ||
| Line 18: | Line 18: | ||
DDx: | DDx: | ||
*Micropapilla - nipple-shaped structure without blood vessels. | *Micropapilla - nipple-shaped structure without blood vessels; usually smaller than papillae. | ||
*Pseudopapilla - cells distant from the blood vessels undergo [[necrosis]] imparting a papillary-like appearance, e.g. [[solid pseudopapillary tumour]]. | *Pseudopapilla - cells distant from the blood vessels undergo [[necrosis]] imparting a papillary-like appearance, e.g. [[solid pseudopapillary tumour]]. | ||
Latest revision as of 21:43, 2 April 2016
In pathology, papillary refers to a nipple-like projection with a fibrovascular core.
Papillary pattern redirects here.
General
- Common histomorphologic pattern that is seen in a large number of contexts.
Microscopy
Histologic definition - papilla:
- Nipple-shaped structure consisting of epithelium on a fibrovascular core.
- Fibrovascular core = fibrous tissue + least one blood vessel.
Note:
- May be associated with psammoma bodies.
DDx:
- Micropapilla - nipple-shaped structure without blood vessels; usually smaller than papillae.
- 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
Breast pathology
Cardiovascular pathology
Dermatopathology
Endocrine pathology
Gastrointestinal pathology
- Solid and papillary epithelial neoplasm - actually pseudopapillary; also known as solid pseudopapillary tumour.
- Intraductal papillary mucinous tumour.
- Biliary intraductal papillary neoplasm.
Genitourinary pathology
- Papillary urothelial neoplasm of low malignant potential.
- Low-grade papillary urothelial carcinoma.
- High-grade papillary urothelial carcinoma.
- Papillary adenoma.
- Papillary renal cell carcinoma.
- Clear cell papillary renal cell carcinoma.
Gynecologic pathology
Head and neck pathology
- Papillary cystadeoma lymphomatosum (Warthin tumour).