{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T22:03:43Z","timestamp":1778277823475,"version":"3.51.4"},"reference-count":12,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"C","license":[{"start":{"date-parts":[[2025,2,1]],"date-time":"2025-02-01T00:00:00Z","timestamp":1738368000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2025,2,1]],"date-time":"2025-02-01T00:00:00Z","timestamp":1738368000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2025,1,14]],"date-time":"2025-01-14T00:00:00Z","timestamp":1736812800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>Choledochal cysts are rare congenital anomalies of the bile ducts, with adult presentations being uncommon. This case is notable for its atypical presentation in a young adult, mimicking a hydatid cyst in a region where echinococcosis is endemic.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation:<\/jats:title>\n                    <jats:p>A 22-year-old female presented with a 3-month history of progressive jaundice, accompanied by 5 months of epigastric and right upper quadrant pain, dark urine, pale stools, pruritus, and significant weight loss. She reported a prior admission for cholangitis, treated with antibiotics. Examination revealed stable vital signs, icteric sclerae, right upper quadrant tenderness, and scratch marks on the skin. Laboratory investigations showed elevated liver enzymes and hyperbilirubinemia (total bilirubin = 26 mg\/dL, direct bilirubin = 20.5 mg\/dL). Initial imaging studies, including ultrasound and CT, suggested a hydatid cyst of the liver. However, MRCP revealed dilated intrahepatic and extrahepatic bile ducts, consistent with a Type IV-A choledochal cyst. The patient underwent cholecystectomy, extrahepatic bile duct excision, and Roux-en-Y cysto-jejunostomy. Histopathological analysis confirmed the diagnosis without evidence of malignancy. She recovered uneventfully, with no complications reported during a 6-month follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion:<\/jats:title>\n                    <jats:p>This case highlights the diagnostic challenges in differentiating choledochal cysts from hydatid cysts, particularly in endemic regions. The use of MRCP was pivotal in achieving an accurate diagnosis and guiding definitive management. Early surgical intervention minimized the risks of complications and malignancy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Type IV-A choledochal cysts can present atypically, mimicking hydatid cysts. Advanced imaging, especially MRCP, is critical for accurate diagnosis and management.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Highlights<\/jats:title>\n                  <\/jats:sec>","DOI":"10.1016\/j.ijscr.2025.110898","type":"journal-article","created":{"date-parts":[[2025,1,15]],"date-time":"2025-01-15T19:23:53Z","timestamp":1736969033000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":1,"title":["A large type IV-A choledochal cyst mimicking hydatid cyst of the liver: A case report"],"prefix":"10.1097","volume":"127","author":[{"given":"Fitsum A.","family":"Gemechu","sequence":"first","affiliation":[{"name":"School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael A.","family":"Negussie","sequence":"additional","affiliation":[{"name":"School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Messay","family":"Gebrekidan","sequence":"additional","affiliation":[{"name":"Department of Radiology, Menelik II Comprehensive Specialized Hospital, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Biruk Zenebe","family":"Bekele","sequence":"additional","affiliation":[{"name":"School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elsa Wolde","family":"Mamo","sequence":"additional","affiliation":[{"name":"School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shimelis Nigussie","family":"Gebremariam","sequence":"additional","affiliation":[{"name":"Department of Surgery, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","reference":[{"issue":"1","key":"R1-85-20260325","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1007\/s12262-011-0388-1","article-title":"Diagnosis and management of choledochal cysts","volume":"74","author":"Khandelwal,","year":"2012","journal-title":"Indian J. 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Type IV-A choledochal cyst in newborn.","volume":"12","author":"Bandi Babita","year":"2023","journal-title":"Int J Sci Res."},{"issue":"1","key":"R5-85-20260325","doi-asserted-by":"crossref","first-page":"582","DOI":"10.1016\/j.radcr.2024.10.033","article-title":"A case of choledochal cyst type IV","volume":"20","author":"Dewi,","year":"2025","journal-title":"Radiol Case Rep."},{"issue":"4","key":"R6-85-20260325","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1001\/archsurg.137.4.465","article-title":"Choledochal cysts in adults","volume":"137","author":"Liu,","year":"2002","journal-title":"Arch. 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