Smooth Muscle Distribution Patterns of Choledochal Cysts and Their Implications for Pathogenesis and Postoperative Complications

Abstract Objectives Histopathologic characteristics of choledochal cysts and their clinical implications have not been previously comprehensively studied. Methods Smooth muscle distribution patterns and other histologic findings (inflammation, metaplasia, dysplasia, and heterotopia) in 233 surgicall...

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Veröffentlicht in:American journal of clinical pathology 2020-06, Vol.153 (6), p.760-771
Hauptverfasser: Hwang, Hee Sang, Kim, Mee-Jeong, Lee, Seung-Soo, Lee, Jae Hoon, Song, Ki Byung, Kim, Hyoung Jung, Hwang, Shin, Lee, Sung Koo, Kim, Myung-Hwan, Hong, Seung-Mo
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container_issue 6
container_start_page 760
container_title American journal of clinical pathology
container_volume 153
creator Hwang, Hee Sang
Kim, Mee-Jeong
Lee, Seung-Soo
Lee, Jae Hoon
Song, Ki Byung
Kim, Hyoung Jung
Hwang, Shin
Lee, Sung Koo
Kim, Myung-Hwan
Hong, Seung-Mo
description Abstract Objectives Histopathologic characteristics of choledochal cysts and their clinical implications have not been previously comprehensively studied. Methods Smooth muscle distribution patterns and other histologic findings (inflammation, metaplasia, dysplasia, and heterotopia) in 233 surgically resected choledochal cysts were evaluated. Results Mean patient age was 23.3 ± 19.8 years, with male:female ratio of 0.3. Most cases were Todani type I (175 cases, 75.1%) or IVa (56 cases, 24.1%). Choledochal cysts with thin scattered/no muscle fiber (175 cases, 75.1%) were the predominant pattern and were associated with more frequent postoperative biliary stricture (P = .031), less frequent pyloric metaplasia (P = .016), and mucosal smooth muscle aggregates (P 
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Methods Smooth muscle distribution patterns and other histologic findings (inflammation, metaplasia, dysplasia, and heterotopia) in 233 surgically resected choledochal cysts were evaluated. Results Mean patient age was 23.3 ± 19.8 years, with male:female ratio of 0.3. Most cases were Todani type I (175 cases, 75.1%) or IVa (56 cases, 24.1%). Choledochal cysts with thin scattered/no muscle fiber (175 cases, 75.1%) were the predominant pattern and were associated with more frequent postoperative biliary stricture (P = .031), less frequent pyloric metaplasia (P = .016), and mucosal smooth muscle aggregates (P &lt; .001) compared to cysts with thick muscle bundles. Severe chronic cholangitis (P = .049), pyloric metaplasia (P = .019), mucosal smooth muscle aggregates (P &lt; .001), biliary intraepithelial neoplasia (P = .021), and associated bile duct (P = .021) and gallbladder carcinomas (P = .03) were more common in adults (age &gt;20 years vs ≤20 years), suggesting that chronic irritation in association with developmental anomalies involves tumorigenesis from choledochal cysts. Conclusion Smooth muscle distribution pattern of choledochal cyst may predict postoperative complication, raising clinical implications of smooth muscle patterns in postoperative management of choledochal cysts.</description><identifier>ISSN: 0002-9173</identifier><identifier>EISSN: 1943-7722</identifier><identifier>DOI: 10.1093/ajcp/aqaa002</identifier><identifier>PMID: 32010932</identifier><language>eng</language><publisher>US: Oxford University Press</publisher><subject>Bile ducts ; Biliary tract diseases ; Carcinoma ; Cholangitis ; Complications ; Cysts ; Development and progression ; Diagnosis ; Dysplasia ; Gallbladder ; Health aspects ; Irritation ; Metaplasia ; Mucosa ; Physiological aspects ; Smooth muscle ; Stricture ; Surgery ; Tumorigenesis</subject><ispartof>American journal of clinical pathology, 2020-06, Vol.153 (6), p.760-771</ispartof><rights>American Society for Clinical Pathology, 2020. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com 2020</rights><rights>American Society for Clinical Pathology, 2020. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.</rights><rights>COPYRIGHT 2020 Oxford University Press</rights><rights>American Society for Clinical Pathology, 2020. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c456t-d31cd12e21e0e84c09b7df26abb579bec980201c3a4cb7122788fa19075c567b3</citedby><cites>FETCH-LOGICAL-c456t-d31cd12e21e0e84c09b7df26abb579bec980201c3a4cb7122788fa19075c567b3</cites><orcidid>0000-0002-8888-6007</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1583,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32010932$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hwang, Hee Sang</creatorcontrib><creatorcontrib>Kim, Mee-Jeong</creatorcontrib><creatorcontrib>Lee, Seung-Soo</creatorcontrib><creatorcontrib>Lee, Jae Hoon</creatorcontrib><creatorcontrib>Song, Ki Byung</creatorcontrib><creatorcontrib>Kim, Hyoung Jung</creatorcontrib><creatorcontrib>Hwang, Shin</creatorcontrib><creatorcontrib>Lee, Sung Koo</creatorcontrib><creatorcontrib>Kim, Myung-Hwan</creatorcontrib><creatorcontrib>Hong, Seung-Mo</creatorcontrib><title>Smooth Muscle Distribution Patterns of Choledochal Cysts and Their Implications for Pathogenesis and Postoperative Complications</title><title>American journal of clinical pathology</title><addtitle>Am J Clin Pathol</addtitle><description>Abstract Objectives Histopathologic characteristics of choledochal cysts and their clinical implications have not been previously comprehensively studied. Methods Smooth muscle distribution patterns and other histologic findings (inflammation, metaplasia, dysplasia, and heterotopia) in 233 surgically resected choledochal cysts were evaluated. Results Mean patient age was 23.3 ± 19.8 years, with male:female ratio of 0.3. Most cases were Todani type I (175 cases, 75.1%) or IVa (56 cases, 24.1%). Choledochal cysts with thin scattered/no muscle fiber (175 cases, 75.1%) were the predominant pattern and were associated with more frequent postoperative biliary stricture (P = .031), less frequent pyloric metaplasia (P = .016), and mucosal smooth muscle aggregates (P &lt; .001) compared to cysts with thick muscle bundles. Severe chronic cholangitis (P = .049), pyloric metaplasia (P = .019), mucosal smooth muscle aggregates (P &lt; .001), biliary intraepithelial neoplasia (P = .021), and associated bile duct (P = .021) and gallbladder carcinomas (P = .03) were more common in adults (age &gt;20 years vs ≤20 years), suggesting that chronic irritation in association with developmental anomalies involves tumorigenesis from choledochal cysts. Conclusion Smooth muscle distribution pattern of choledochal cyst may predict postoperative complication, raising clinical implications of smooth muscle patterns in postoperative management of choledochal cysts.</description><subject>Bile ducts</subject><subject>Biliary tract diseases</subject><subject>Carcinoma</subject><subject>Cholangitis</subject><subject>Complications</subject><subject>Cysts</subject><subject>Development and progression</subject><subject>Diagnosis</subject><subject>Dysplasia</subject><subject>Gallbladder</subject><subject>Health aspects</subject><subject>Irritation</subject><subject>Metaplasia</subject><subject>Mucosa</subject><subject>Physiological aspects</subject><subject>Smooth muscle</subject><subject>Stricture</subject><subject>Surgery</subject><subject>Tumorigenesis</subject><issn>0002-9173</issn><issn>1943-7722</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kdFr1TAUh4M43HX65rMEfNAHuyVp0rSPo043mDhwPoc0PV1zaZsuSYW9-acv9V43FZE8BA7f9-Mcfgi9ouSYkio_0Vszn-hbrQlhT9CGVjzPpGTsKdqQNMoqKvND9DyELSGUlYQ_Q4c5I6vLNujH19G52OPPSzAD4A82RG-bJVo34SsdI_gpYNfhuncDtM70esD1XYgB66nF1z1Yjy_GebBGr07AnfOr2LsbmCDYHXflQnQz-MR8B1y734QX6KDTQ4CX-_8Ifft4dl2fZ5dfPl3Up5eZ4aKIWZtT01IGjAKBkhtSNbLtWKGbRsiqAVOVJB1lcs1NIyljsiw7TSsihRGFbPIj9G6XO3t3u0CIarTBwDDoCdwSFMsFyTkthUzom7_QrVv8lLZTjDMhJC0of6Ru9ADKTp2LXps1VJ0WXDBeyJ9Zx_-g0mthtMZN0Nk0_0N4vxOMdyF46NTs7aj9naJEraWptXC1Lzzhr_e7Ls0I7QP8q-EEvN0Bbpn_H3UPZty1GQ</recordid><startdate>20200601</startdate><enddate>20200601</enddate><creator>Hwang, Hee Sang</creator><creator>Kim, Mee-Jeong</creator><creator>Lee, Seung-Soo</creator><creator>Lee, Jae Hoon</creator><creator>Song, Ki Byung</creator><creator>Kim, Hyoung Jung</creator><creator>Hwang, Shin</creator><creator>Lee, Sung Koo</creator><creator>Kim, Myung-Hwan</creator><creator>Hong, Seung-Mo</creator><general>Oxford University Press</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-8888-6007</orcidid></search><sort><creationdate>20200601</creationdate><title>Smooth Muscle Distribution Patterns of Choledochal Cysts and Their Implications for Pathogenesis and Postoperative Complications</title><author>Hwang, Hee Sang ; 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Methods Smooth muscle distribution patterns and other histologic findings (inflammation, metaplasia, dysplasia, and heterotopia) in 233 surgically resected choledochal cysts were evaluated. Results Mean patient age was 23.3 ± 19.8 years, with male:female ratio of 0.3. Most cases were Todani type I (175 cases, 75.1%) or IVa (56 cases, 24.1%). Choledochal cysts with thin scattered/no muscle fiber (175 cases, 75.1%) were the predominant pattern and were associated with more frequent postoperative biliary stricture (P = .031), less frequent pyloric metaplasia (P = .016), and mucosal smooth muscle aggregates (P &lt; .001) compared to cysts with thick muscle bundles. 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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Oxford University Press Journals All Titles (1996-Current); Alma/SFX Local Collection
subjects Bile ducts
Biliary tract diseases
Carcinoma
Cholangitis
Complications
Cysts
Development and progression
Diagnosis
Dysplasia
Gallbladder
Health aspects
Irritation
Metaplasia
Mucosa
Physiological aspects
Smooth muscle
Stricture
Surgery
Tumorigenesis
title Smooth Muscle Distribution Patterns of Choledochal Cysts and Their Implications for Pathogenesis and Postoperative Complications
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