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style="background:#ccc">Juvenile polyp</th></tr><tr><th scope="row" class="infobox-label">Other names</th><td class="infobox-data">Retention polyp<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medical_specialty" title="Medical specialty">Specialty</a></th><td class="infobox-data"><a href="/wiki/Gastroenterology" title="Gastroenterology">Gastroenterology</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Signs_and_symptoms" title="Signs and symptoms">Symptoms</a></th><td class="infobox-data"><a href="/wiki/Asymptomatic" title="Asymptomatic">Asymptomatic</a><br /><a href="/wiki/Rectal_bleeding" title="Rectal bleeding">Rectal bleeding</a><br /><a href="/wiki/Rectal_prolapse" title="Rectal prolapse">Rectal prolapse</a></td></tr><tr><th scope="row" class="infobox-label">Usual onset</th><td class="infobox-data">Childhood</td></tr><tr><th scope="row" class="infobox-label">Types</th><td class="infobox-data">Solitary<br /><a href="/wiki/Juvenile_polyposis_syndrome" title="Juvenile polyposis syndrome">Juvenile polyposis syndrome</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medical_diagnosis" title="Medical diagnosis">Diagnostic method</a></th><td class="infobox-data"><a href="/wiki/Colonoscopy" title="Colonoscopy">Colonoscopy</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Differential_diagnosis" title="Differential diagnosis">Differential diagnosis</a></th><td class="infobox-data"><a href="/wiki/Hyperplastic_polyp" title="Hyperplastic polyp">Hyperplastic polyp</a>, Inflammatory polyp, <a href="/wiki/Cowden_syndrome" title="Cowden syndrome">Cowden syndrome</a><br /><a href="/wiki/Peutz-Jeghers_syndrome" class="mw-redirect" title="Peutz-Jeghers syndrome">Peutz-Jeghers syndrome</a></td></tr><tr><th scope="row" class="infobox-label">Treatment</th><td class="infobox-data"><a href="/wiki/Polypectomy" title="Polypectomy">Polypectomy</a></td></tr><tr><th scope="row" class="infobox-label">Frequency</th><td class="infobox-data">2% of children</td></tr></tbody></table> <p><b>Juvenile polyps</b> are a type of <a href="/wiki/Colon_polyp" class="mw-redirect" title="Colon polyp">polyp</a> found in the <a href="/wiki/Colon_(anatomy)" class="mw-redirect" title="Colon (anatomy)">colon</a>. While juvenile polyps are typically found in children, they may be found in people of any age. Juvenile polyps are a type of <a href="/wiki/Hamartomatous" class="mw-redirect" title="Hamartomatous">hamartomatous</a> polyps, which consist of a disorganized mass of tissue. They occur in about two percent of children.<sup id="cite_ref-Brosens_2-0" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Juvenile polyps often do not cause symptoms (asymptomatic); when present, symptoms usually include <a href="/wiki/Gastrointestinal_bleeding" title="Gastrointestinal bleeding">gastrointestinal bleeding</a> and <a href="/wiki/Rectal_prolapse" title="Rectal prolapse">prolapse through the rectum</a>. Removal of the polyp (<a href="/wiki/Polypectomy" title="Polypectomy">polypectomy</a>) is warranted when symptoms are present, for treatment and definite histopathological diagnosis. In the absence of symptoms, removal is not necessary. Recurrence of polyps following removal is relatively common.<sup id="cite_ref-Fox_3-0" class="reference"><a href="#cite_note-Fox-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Juvenile polyps are usually sporadic, occurring in isolation, although they may occur as a part of <a href="/wiki/Juvenile_polyposis_syndrome" title="Juvenile polyposis syndrome">juvenile polyposis syndrome</a>. Sporadic juvenile polyps may occur in any part of the colon, but are usually found in the distal colon (<a href="/wiki/Rectum" title="Rectum">rectum</a> and <a href="/wiki/Sigmoid_colon" title="Sigmoid colon">sigmoid</a>). In contrast to other types of colon polyps, juvenile polyps are not premalignant and are not usually associated with a higher risk of cancer;<sup id="cite_ref-Nugent_4-0" class="reference"><a href="#cite_note-Nugent-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> however, individuals with juvenile polyposis syndrome are at increased risk of <a href="/wiki/Gastric_cancer" class="mw-redirect" title="Gastric cancer">gastric</a> and <a href="/wiki/Colorectal_cancer" title="Colorectal cancer">colorectal cancer</a>.<sup id="cite_ref-Brosens_2-1" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Hood_5-0" class="reference"><a href="#cite_note-Hood-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Unlike juvenile polyposis syndrome, solitary juvenile polyps do not require follow up with surveillance colonoscopy. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Signs_and_symptoms">Signs and symptoms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=1" title="Edit section: Signs and symptoms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Juvenile polyps often do not cause symptoms (asymptomatic); when present, symptoms usually include gastrointestinal bleeding and prolapse through the rectum. Juvenile polyps are usually sporadic, occurring in isolation, although they may occur as a part of <a href="/wiki/Juvenile_polyposis_syndrome" title="Juvenile polyposis syndrome">juvenile polyposis syndrome</a>. Sporadic juvenile polyps may occur in any part of the colon, but are usually found in the distal colon (<a href="/wiki/Rectum" title="Rectum">rectum</a> and <a href="/wiki/Sigmoid_colon" title="Sigmoid colon">sigmoid</a>).<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Histopathology">Histopathology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=2" title="Edit section: Histopathology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Under microscopy, juvenile polyps are characterized by cystic architecture, mucus-filled glands, and prominent lamina propria. Inflammatory cells may be present. Compared with sporadic polyps, polyps that occur in juvenile polyposis syndrome tend to have more of a frond-like (resembling a leaf) growth pattern with fewer stroma, fewer dilated glands and smaller glands with more proliferation.<sup id="cite_ref-Brosens_2-2" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Syndrome-related juvenile polyps also demonstrate more <a href="/wiki/Neoplasia" class="mw-redirect" title="Neoplasia">neoplasia</a> and increased <a href="/wiki/COX-2" class="mw-redirect" title="COX-2">COX-2</a> expression compared with sporadic juvenile polyps.<sup id="cite_ref-Brosens_2-3" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=3" title="Edit section: Diagnosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Juvenile polyps are diagnosed by examination of their distinctive histopathology, generally after polypectomy via endoscopy.<sup id="cite_ref-Colonic_polyps_in_children_and_adol_7-0" class="reference"><a href="#cite_note-Colonic_polyps_in_children_and_adol-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Juvenile polyps cause <a href="/wiki/Fecal_calprotectin" class="mw-redirect" title="Fecal calprotectin">fecal calprotectin</a> level to be elevated.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Treatment">Treatment</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=4" title="Edit section: Treatment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>If symptoms are present, then removal of the polyp (polypectomy) is warranted. Recurrence of polyps following removal is relatively common.<sup id="cite_ref-Fox_3-1" class="reference"><a href="#cite_note-Fox-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Unlike juvenile polyposis syndrome, solitary juvenile polyps do not require follow up with surveillance colonoscopy.<sup id="cite_ref-Colonic_polyps_in_children_and_adol_7-1" class="reference"><a href="#cite_note-Colonic_polyps_in_children_and_adol-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Epidemiology">Epidemiology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=5" title="Edit section: Epidemiology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Juvenile polyps occur in about 2 percent of children.<sup id="cite_ref-Brosens_2-4" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> In contrast to other types of colon polyps, juvenile polyps are not premalignant and are not usually associated with a higher risk of cancer;<sup id="cite_ref-Nugent_4-1" class="reference"><a href="#cite_note-Nugent-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> however, individuals with juvenile polyposis syndrome are at increased risk of <a href="/wiki/Gastric_cancer" class="mw-redirect" title="Gastric cancer">gastric</a> and <a href="/wiki/Colorectal_cancer" title="Colorectal cancer">colorectal cancer</a>.<sup id="cite_ref-Brosens_2-5" class="reference"><a href="#cite_note-Brosens-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Hood_5-1" class="reference"><a href="#cite_note-Hood-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Juvenile_polyp&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output 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a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFPopovićKneževićŠkopeljaĐolai2022" class="citation journal cs1">Popović M, Knežević A, Škopelja JD, Đolai M (2022). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9934046">"JUVENILE POLYP IN ADULTS"</a>. <i>Acta Clinica 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title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Pediatric+Gastroenterology+and+Nutrition&rft.atitle=Value+of+Fecal+Calprotectin+as+a+Biomarker+for+Juvenile+Polyps+in+Children+Investigated+With+Colonoscopy.&rft.volume=62&rft.issue=1&rft.pages=43-6&rft.date=2016-01&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A19284840%23id-name%3DS2CID&rft_id=info%3Apmid%2F26147630&rft_id=info%3Adoi%2F10.1097%2FMPG.0000000000000893&rft.aulast=Olafsdottir&rft.aufirst=I&rft.au=Nemeth%2C+A&rft.au=L%C3%B6rinc%2C+E&rft.au=Toth%2C+E&rft.au=Agardh%2C+D&rft_id=https%3A%2F%2Fdoi.org%2F10.1097%252FMPG.0000000000000893&rfr_id=info%3Asid%2Fen.wikipedia.org%3AJuvenile+polyp" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist 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td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Digestive_system_neoplasia" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar 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href="/wiki/Template:Digestive_system_neoplasia" title="Template:Digestive system neoplasia"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Digestive_system_neoplasia" title="Template talk:Digestive system neoplasia"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Digestive_system_neoplasia" title="Special:EditPage/Template:Digestive system neoplasia"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Digestive_system_neoplasia" style="font-size:114%;margin:0 4em"><a href="/wiki/Digestive_system_neoplasm" title="Digestive system neoplasm">Digestive system neoplasia</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Human_gastrointestinal_tract" class="mw-redirect" title="Human gastrointestinal tract">GI tract</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Upper_alimentary_tract#Upper_gastrointestinal_tract" class="mw-redirect" title="Upper alimentary tract">Upper</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Esophageal_cancer" title="Esophageal cancer">Esophagus</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Squamous_cell_carcinoma" class="mw-redirect" title="Squamous cell carcinoma">Squamous cell carcinoma</a></li> <li><a href="/wiki/Adenocarcinoma" title="Adenocarcinoma">Adenocarcinoma</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Stomach_cancer" title="Stomach cancer">Stomach</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gastric_carcinoma" class="mw-redirect" title="Gastric carcinoma">Gastric carcinoma</a></li> <li><a href="/wiki/Signet_ring_cell_carcinoma" title="Signet ring cell carcinoma">Signet ring cell carcinoma</a></li> <li><a href="/wiki/Gastric_lymphoma" title="Gastric lymphoma">Gastric lymphoma</a> <ul><li><a href="/wiki/MALT_lymphoma" title="MALT lymphoma">MALT lymphoma</a></li></ul></li> <li><a href="/wiki/Linitis_plastica" title="Linitis plastica">Linitis plastica</a></li> <li><a href="/wiki/Hereditary_diffuse_gastric_cancer" title="Hereditary diffuse gastric cancer">Hereditary diffuse gastric cancer</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Human_gastrointestinal_tract#Lower_gastrointestinal_tract" class="mw-redirect" title="Human gastrointestinal tract">Lower</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Small_intestine_cancer" title="Small intestine cancer">Small intestine</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Duodenal_cancer" title="Duodenal cancer">Duodenal cancer</a> <ul><li><a href="/wiki/Adenocarcinoma" title="Adenocarcinoma">Adenocarcinoma</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Appendix_cancer" title="Appendix cancer">Appendix</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Carcinoid" title="Carcinoid">Carcinoid</a></li> <li><a href="/wiki/Pseudomyxoma_peritonei" title="Pseudomyxoma peritonei">Pseudomyxoma peritonei</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Colorectal_cancer" title="Colorectal cancer">Colon/rectum</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Colorectal_polyp" title="Colorectal polyp">Colorectal polyp</a>:</i> <a href="/wiki/Colorectal_adenoma" title="Colorectal adenoma">adenoma</a>, <a href="/wiki/Hyperplastic_polyp" title="Hyperplastic polyp">hyperplastic</a>, <a class="mw-selflink selflink">juvenile</a>, <a href="/wiki/Sessile_serrated_adenoma" class="mw-redirect" title="Sessile serrated adenoma">sessile serrated adenoma</a>, <a href="/wiki/Traditional_serrated_adenoma" title="Traditional serrated adenoma">traditional serrated adenoma</a>, <a href="/wiki/Peutz%E2%80%93Jeghers_syndrome" title="Peutz–Jeghers syndrome">Peutz–Jeghers</a>, <a href="/wiki/Cronkhite%E2%80%93Canada_syndrome" title="Cronkhite–Canada syndrome">Cronkhite–Canada</a></li></ul> <ul><li><i>Polyposis syndromes:</i> <a href="/wiki/Juvenile_polyposis_syndrome" title="Juvenile polyposis syndrome">Juvenile</a></li> <li><a href="/wiki/MUTYH-associated_polyposis" title="MUTYH-associated polyposis">MUTYH-associated</a></li> <li><a href="/wiki/Familial_adenomatous_polyposis" title="Familial adenomatous polyposis">Familial adenomatous</a>/<a href="/wiki/Gardner%27s_syndrome" title="Gardner's syndrome">Gardner's</a></li> <li><a href="/wiki/Polymerase_proofreading-associated_polyposis" title="Polymerase proofreading-associated polyposis">Polymerase proofreading-associated</a></li> <li><a href="/wiki/Serrated_polyposis_syndrome" title="Serrated polyposis syndrome">Serrated polyposis</a></li></ul> <ul><li><i>Neoplasm:</i> <a href="/wiki/Adenocarcinoma" title="Adenocarcinoma">Adenocarcinoma</a></li> <li><a href="/wiki/Familial_adenomatous_polyposis" title="Familial adenomatous polyposis">Familial adenomatous polyposis</a></li> <li><a href="/wiki/Hereditary_nonpolyposis_colorectal_cancer" title="Hereditary nonpolyposis colorectal cancer">Hereditary nonpolyposis colorectal cancer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anal_cancer" title="Anal cancer">Anus</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Squamous_cell_carcinoma" class="mw-redirect" title="Squamous cell carcinoma">Squamous cell carcinoma</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Upper and/or lower</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gastrointestinal_stromal_tumor" title="Gastrointestinal stromal tumor">Gastrointestinal stromal tumor</a></li> <li><a href="/wiki/Krukenberg_tumor" title="Krukenberg tumor">Krukenberg tumor (metastatic)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Accessory_digestive_gland" class="mw-redirect" title="Accessory digestive gland">Accessory</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Liver_tumor" title="Liver tumor">Liver</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Malignant" class="mw-redirect" title="Malignant">malignant</a>:</i> <a href="/wiki/Hepatocellular_carcinoma" title="Hepatocellular carcinoma">Hepatocellular carcinoma</a> <ul><li><a href="/wiki/Fibrolamellar_hepatocellular_carcinoma" title="Fibrolamellar hepatocellular carcinoma">Fibrolamellar</a></li></ul></li> <li><a href="/wiki/Hepatoblastoma" title="Hepatoblastoma">Hepatoblastoma</a></li> <li><a href="/wiki/Liver_angiosarcoma" title="Liver angiosarcoma">Liver angiosarcoma</a></li></ul> <ul><li><i><a href="/wiki/Benign_tumor" title="Benign tumor">benign</a>:</i> <a href="/wiki/Hepatocellular_adenoma" title="Hepatocellular adenoma">Hepatocellular adenoma</a></li> <li><a href="/wiki/Cavernous_hemangioma" title="Cavernous hemangioma">Cavernous hemangioma</a></li></ul> <ul><li><i><a href="/wiki/Hyperplasia" title="Hyperplasia">hyperplasia</a>:</i> <a href="/wiki/Focal_nodular_hyperplasia" title="Focal nodular hyperplasia">Focal nodular hyperplasia</a></li> <li><a href="/wiki/Nodular_regenerative_hyperplasia" title="Nodular regenerative hyperplasia">Nodular regenerative hyperplasia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Biliary_tract" title="Biliary tract">Biliary tract</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Bile_duct" title="Bile duct">bile duct</a>:</i> <a href="/wiki/Cholangiocarcinoma" title="Cholangiocarcinoma">Cholangiocarcinoma</a></li> <li><a href="/wiki/Klatskin_tumor" title="Klatskin tumor">Klatskin tumor</a></li></ul> <ul><li><i><a href="/wiki/Gallbladder" title="Gallbladder">gallbladder</a>:</i> <a href="/wiki/Gallbladder_cancer" title="Gallbladder cancer">Gallbladder cancer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pancreatic_cancer" title="Pancreatic cancer">Pancreas</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Exocrine_pancreas" class="mw-redirect" title="Exocrine pancreas">exocrine pancreas</a>:</i> <a href="/wiki/Adenocarcinoma" title="Adenocarcinoma">Adenocarcinoma</a></li> <li><a href="/wiki/Pancreatic_ductal_carcinoma" class="mw-redirect" title="Pancreatic ductal carcinoma">Pancreatic ductal carcinoma</a></li></ul> <ul><li><i><a href="/wiki/Cyst" title="Cyst">cystic</a> <a href="/wiki/Neoplasm" title="Neoplasm">neoplasms</a></i>: <a href="/wiki/Serous_microcystic_adenoma" class="mw-redirect" title="Serous microcystic adenoma">Serous microcystic adenoma</a></li> <li><a href="/wiki/Intraductal_papillary_mucinous_neoplasm" title="Intraductal papillary mucinous neoplasm">Intraductal papillary mucinous neoplasm</a></li> <li><a href="/wiki/Pancreatic_mucinous_cystic_neoplasm" title="Pancreatic mucinous cystic neoplasm">Mucinous cystic neoplasm</a></li> <li><a href="/wiki/Solid_pseudopapillary_neoplasm" class="mw-redirect" title="Solid pseudopapillary neoplasm">Solid pseudopapillary neoplasm</a></li></ul> <ul><li><a href="/wiki/Pancreatoblastoma" title="Pancreatoblastoma">Pancreatoblastoma</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Peritoneum" title="Peritoneum">Peritoneum</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Primary_peritoneal_carcinoma" title="Primary peritoneal carcinoma">Primary peritoneal carcinoma</a></li> <li><a href="/wiki/Peritoneal_mesothelioma" title="Peritoneal mesothelioma">Peritoneal mesothelioma</a></li> <li><a href="/wiki/Desmoplastic_small_round_cell_tumor" class="mw-redirect" title="Desmoplastic small round cell tumor">Desmoplastic small round cell tumor</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Juvenile_polyp&oldid=1255857747">https://en.wikipedia.org/w/index.php?title=Juvenile_polyp&oldid=1255857747</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Digestive_system_neoplasia" title="Category:Digestive system neoplasia">Digestive system neoplasia</a></li><li><a href="/wiki/Category:Histopathology" title="Category:Histopathology">Histopathology</a></li></ul></div><div 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