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Difference between revisions of "Hemorrhoid"
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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Hemorrhoid -- low mag.jpg | |||
| Width = | |||
| Caption = Hemorrhoid. [[H&E stain]]. | |||
| Micro = polypoid lesion (epithelium on three sides) with large dilated veins and thick-walled vessels +/- fibrin thrombi, +/-edema, covered by squamous epithelium +/- keratinization and/or columnar epithelium | |||
| Subtypes = | |||
| LMDDx = [[fibroepithelial polyp]], vascular lesions | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = | |||
| Grossing = | |||
| Site = [[rectum]]/[[anus]] | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = | |||
| Signs = +/-bright red blood per rectum | |||
| Symptoms = +/-itching, +/-pain | |||
| Prevalence = very common | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = other causes of rectal bleeding, e.g. [[colorectal carcinoma]] | |||
}} | |||
'''Hemorrhoid''' is a benign pathology of the rectal venous plexus, that may mimic more serious pathology, i.e. [[cancer]]. | '''Hemorrhoid''' is a benign pathology of the rectal venous plexus, that may mimic more serious pathology, i.e. [[cancer]]. | ||
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==See also== | ==See also== | ||
*[[Anus]]. | *[[Anus]]. | ||
*[[Colon]]. | |||
==References== | ==References== | ||