Inflammatory pseudopolyp: Difference between revisions
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{{ Infobox diagnosis | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | | Name = {{PAGENAME}} | ||
| Image = | | Image = Inflammatory polyp -- low mag.jpg | ||
| Width = | | Width = | ||
| Caption = | | Caption = Inflammatory polyp. [[H&E stain]]. | ||
| Micro = polypoid shape, inflammatory cells - esp. [[neutrophils]] | | Micro = polypoid shape, inflammatory cells - esp. [[neutrophils]] | ||
| Subtypes = | | Subtypes = | ||
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| Signs = | | Signs = | ||
| Symptoms = | | Symptoms = | ||
| Prevalence = | | Prevalence = not common | ||
| Bloodwork = | | Bloodwork = | ||
| Rads = | | Rads = | ||
| Endoscopy = | | Endoscopy = | ||
| Prognosis = | | Prognosis = benign | ||
| Other = | | Other = | ||
| ClinDDx = other types of polyps | | ClinDDx = other types of polyps | ||
}} | |||
{{ Infobox external links | |||
| Name = {{PAGENAME}} | |||
| EHVSC = 9992 | |||
| pathprotocols = | |||
| wikipedia = | |||
| pathoutlines = | |||
}} | }} | ||
'''Inflammatory pseudopolyp''' is a benign polypoid lesion usually seen in the context of [[inflammatory bowel disease]]. | '''Inflammatory pseudopolyp''' is a benign polypoid lesion usually seen in the context of [[inflammatory bowel disease]]. | ||
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**[[Solitary rectal ulcer]]. | **[[Solitary rectal ulcer]]. | ||
Images: | ===Images=== | ||
<gallery> | |||
Image: Inflammatory polyp -- very low mag.jpg | IP - very low mag. | |||
Image: Inflammatory polyp -- low mag.jpg | IP - low mag. | |||
Image: Inflammatory polyp -- intermed mag.jpg | IP - intermed. mag. | |||
Image: Inflammatory polyp -- high mag.jpg | IP - high mag. | |||
</gallery> | |||
www: | |||
*[http://www.humpath.com/spip.php?article8234&id_document=18554 Pseudopolyp (humpath.com)]. | *[http://www.humpath.com/spip.php?article8234&id_document=18554 Pseudopolyp (humpath.com)]. | ||
*[http://missinglink.ucsf.edu/lm/IDS_106_LowerGI/Lower_GI_histo_small/24-UC-pseudoplp.jpg Pseudopolyp (ucsf.edu)]. | *[http://missinglink.ucsf.edu/lm/IDS_106_LowerGI/Lower_GI_histo_small/24-UC-pseudoplp.jpg Pseudopolyp (ucsf.edu)]. | ||
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- INFLAMED POLYPOID FRAGMENT OF COLORECTAL-TYPE MUCOSA. | - INFLAMED POLYPOID FRAGMENT OF COLORECTAL-TYPE MUCOSA. | ||
-- NEGATIVE FOR DYSPLASIA. | -- NEGATIVE FOR DYSPLASIA. | ||
</pre> | |||
===Diverticular disease-associated=== | |||
<pre> | |||
Polyp, Sigmoid Colon, Polypectomy: | |||
- Colonic mucosa with ulceration, acute inflammation and granulation tissue. | |||
- NEGATIVE for dysplasia. | |||
Comment: | |||
This may represent a polyp seen in the context of diverticular disease. Other | |||
considerations include ischemia, idiopathic inflammation and infections. | |||
Clinical correlation is suggested. | |||
</pre> | |||
====Block letters==== | |||
<pre> | |||
POLYP (AT EDGE OF DIVERTICULUM), SIGMOID COLON, POLYPECTOMY: | |||
- GRANULATION TISSUE AND SCANT BENIGN EPITHELIUM. | |||
- NO EVIDENCE OF DYSPLASIA. | |||
</pre> | </pre> | ||
===Micro=== | ===Micro=== | ||
The sections show a fragment of colorectal mucosa with focal ulceration, acute inflammation and a well-vascularized stroma with plump stromal cells. Occasional stromal cells have nuclear hyperchromasia. | The sections show a fragment of colorectal mucosa with focal ulceration, acute inflammation and a well-vascularized stroma with plump stromal cells. Occasional stromal cells have nuclear hyperchromasia. | ||
====Alternate==== | |||
The sections show a fragment of tissue with scant benign epithelium, acute and chronic | |||
inflammation (neutrophils and plasma cells predominantly), abundant blood vessels with | |||
reactive endothelial cells and plump stromal cells. Occasional stromal cells have nuclear hyperchromasia but do not show significant atypia. | |||
==See also== | ==See also== | ||