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| ==Hyperplastic polyp of the stomach== | | ==Hyperplastic polyp of the stomach== |
| {{Main|Hyperplastic polyp}} | | {{Main|Hyperplastic polyp of the stomach}} |
| *[[AKA]] ''gastric hyperplastic polyp''.
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| ===General===
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| *Benign.
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| *Most common gastric polyp.<ref name=pmid19037727/>
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| ===Microscopic===
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| Features:<ref>URL: [http://pathologyoutlines.com/stomach.html#hyperplastic http://pathologyoutlines.com/stomach.html#hyperplastic]. Accessed on: 26 July 2011.</ref>
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| *Abundant foveolar cells and elongated glands - '''key feature'''.
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| *+/-Gland dilation.
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| Negatives:
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| *No atypical nuclei.
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| *No hyperchromasia.
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| *No loss of pseudostratification.
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| Notes:
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| *No serrations - as in the colon.
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| DDx:
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| *[[Ménétrier's disease]]<ref name=pmid18384215>{{Cite journal | last1 = Park | first1 = do Y. | last2 = Lauwers | first2 = GY. | title = Gastric polyps: classification and management. | journal = Arch Pathol Lab Med | volume = 132 | issue = 4 | pages = 633-40 | month = Apr | year = 2008 | doi = 10.1043/1543-2165(2008)132[633:GPCAM]2.0.CO;2 | PMID = 18384215 | url=http://www.archivesofpathology.org/doi/full/10.1043/1543-2165(2008)132%5B633:GPCAM%5D2.0.CO;2 }}</ref> (hyperplastic hypersecretory gastropathy).
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| *[[Juvenile polyp]]<ref name=pmid19037727>{{Cite journal | last1 = Jain | first1 = R. | last2 = Chetty | first2 = R. | title = Gastric hyperplastic polyps: a review. | journal = Dig Dis Sci | volume = 54 | issue = 9 | pages = 1839-46 | month = Sep | year = 2009 | doi = 10.1007/s10620-008-0572-8 | PMID = 19037727 }}</ref> - abundant lamina propria, dilated glands may have neutrophils.<ref name=Ref_GLP102>{{Ref GLP|102}}</ref>
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| *[[Peutz-Jeghers polyp]] - thick superficial muscle.
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| *[[Fundic gland polyp]] - doesn't have foveolar hyperplasia.
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| ====Images====
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| <gallery>
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| Image: Gastric_hyperplastic_polyp_%281%29_foveolar_type.jpg | Gastric hyperplastic polyp - low mag. (WC/KGH)
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| Image: Gastric_hyperplastic_polyp_%283%29_foveolar_type.jpg | Gastric hyperplastic polyp - high mag. (WC/KGH)
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| </gallery>
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| www:
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| *[http://www.flickr.com/photos/jian-hua_qiao_md/3953137621/ Gastric hyperplastic polyp (flickr.com)].
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| *[http://www.flickr.com/photos/jian-hua_qiao_md/3953138195/in/photostream/ Gastric hyperplastic polyp (flickr.com)].
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| ===Sign out===
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| <pre>
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| POLYP, STOMACH (ANTRUM), EXCISION:
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| - HYPERPLASTIC POLYP.
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| </pre>
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| ====Micro====
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| The sections show antral-type gastric mucosa with hyperplastic gastric pits. No gland dilation is apparent. The epithelium matures to the surface. The lamina propria is not expanded.
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| Focal neutrophilic inflammation is present. No Helicobacter-like organisms are identified. No intestinal metaplasia is present. No mitotic activity or nuclear atypia is apparent.
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| ==Fundic gland polyp== | | ==Fundic gland polyp== |