Research & Literature

Multiple associated anomalies in patients of duodenal atresia: a case series.

Mirza B, Sheikh A

Journal of neonatal surgery 2012; (1(2)):23.

Pancreaticoduodenectomy for pancreas carcinoma occurring in the annular pancreas: report of a case.

Kawaida H, Kono H, Watanabe M, et al.

Clinical journal of gastroenterology 2015; (8(4)):223-7 doi:10.1007/s12328-015-0579-6.

Portal annular pancreas: the pancreatic duct ring sign on MRCP.

Lath CO, Agrawal DS, Timins ME, Wein MM

Radiology case reports 2015; (10(4)):42-5 doi:10.1016/j.radcr.2015.08.005.

[A Case of Cholangiocarcinoma with Intestinal Malrotation Treated with Pancreaticoduodenectomy].

Saito Y, Miyamoto A, Maeda S, et al.

Gan to kagaku ryoho. Cancer & chemotherapy 2015; (42(12)):1729-31.

The "double bubble" sign.

Koberlein G, DiSantis D

Abdominal radiology (New York) 2016; (41(2)):334-5 doi:10.1007/s00261-015-0558-x.

Prenatal diagnosis and physical model reconstruction of agnathia-otocephaly with limb deformities (absent ulna, fibula and digits) following maternal exposure to oxymetazoline in the first trimester.

Menezes GA, Araujo Júnior E, Lopes J, et al.

The journal of obstetrics and gynaecology research 2016; (42(8)):1016-20 doi:10.1111/jog.13014.

Prenatal counselling for congenital anomalies: a systematic review.

Marokakis S, Kasparian NA, Kennedy SE

Prenatal diagnosis 2016; (36(7)):662-71 doi:10.1002/pd.4836.

Laparoscopic duodenoduodenostomy with parallel anastomosis for duodenal atresia.

Oh C, Lee S, Lee SK, Seo JM

Surgical endoscopy 2017; (31(6)):2406-2410 doi:10.1007/s00464-016-5241-y.

Congenital Duodenal Obstruction in Neonates: Over 13 Years' Experience from a Single Centre.

Kumar P, Kumar C, Pandey PR, Sarin YK

Journal of neonatal surgery 2016; (5(4)):50 doi:10.21699/jns.v5i4.461.

Prepancreatic postduodenal portal vein: a case report and review of the literature.

Goussous N, Cunningham SC

Journal of medical case reports 2017; (11(1)):2 doi:10.1186/s13256-016-1165-3.

A rare cause of vomiting: annular pancreas.

Şahin Y, Doğan Y, Civan HA, et al.

Turk pediatri arsivi 2017; (52(4)):236-239 doi:10.5152/TurkPediatriArs.2017.3394.

Annular Pancreas, Severe Tracheomalacia and Bronchomalacia in a Preterm Boy with Vacterl Association.

Akdag A, Turgut A, Ceylan S, Kaya M

Genetic counseling (Geneva, Switzerland) 2016; (27(2)):207-10.

Laparoscopic Roux-en-Y duodenojejunostomy for annular pancreas in adults: case report and literature review.

Cai H, Wang X, Cai YQ, et al.

Annals of translational medicine 2018; (6(11)):211 doi:10.21037/atm.2018.05.13.

Annular pancreas: endoscopic and pancreatographic findings from a tertiary referral ERCP center.

Gromski MA, Lehman GA, Zyromski NJ, et al.

Gastrointestinal endoscopy 2019; (89(2)):322-328 doi:10.1016/j.gie.2018.09.008.

Afferent loop syndrome in a patient having incomplete annular pancreas.

Jose W, Saxena D, Hoisala R

BJR case reports 2017; (3(1)):20160015 doi:10.1259/bjrcr.20160015.

Impact of endoscopic ultrasonography on diagnosis of pancreatic cancer.

Kitano M, Yoshida T, Itonaga M, et al.

Journal of gastroenterology 2019; (54(1)):19-32 doi:10.1007/s00535-018-1519-2.

Laparoscopic Roux-en Y duodenojejunostomy: A safe and physiological treatment for symptomatic annular pancreas in adults.

Chittawadagi B, Senthilnathan P, Jankar SV, et al.

Journal of minimal access surgery 2020; (16(2)):121-125 doi:10.4103/jmas.JMAS_245_18.

Pancreaticobiliary maljunction diagnosed long after laparotomy in the neonatal period for annular pancreas: report of a case.

Sato N, Shimura T, Kenjo A, et al.

Surgical case reports 2019; (5(1)):16 doi:10.1186/s40792-019-0572-2.

Combining endoscopic ultrasound and tumor markers improves the diagnostic yield on the etiology of common bile duct dilation secondary to periampullary pathologies.

Ding H, Zhou P, Xu M, et al.

Annals of translational medicine 2019; (7(14)):314 doi:10.21037/atm.2019.06.51.

Increased maternal new-onset psychiatric disorders after delivering a child with a major anomaly: a cohort study.

Rotberg B, Horváth-Puhó E, Vigod S, et al.

Acta psychiatrica Scandinavica 2020; (142(4)):264-274 doi:10.1111/acps.13181.

Complex Pancreaticobiliary Maljunction with Pancreas Divisum and Obstructive Pseudocyst.

Meldrum JT, Tabak BD, Roberts CA, Wood JR

Journal of clinical imaging science 2020; (10()):31 doi:10.25259/JCIS_17_2020.

The application of prenatal ultrasound in the diagnosis of congenital duodenal obstruction.

Yin C, Tong L, Ma M, et al.

BMC pregnancy and childbirth 2020; (20(1)):387 doi:10.1186/s12884-020-03078-5.

Portal Annular Pancreas (PAP): an Underestimated Devil in Pancreatic Surgery-Systematic Review of Literature and Case Report.

Pandrowala S, Parray A, Chaudhari V, et al.

Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract 2021; (25(5)):1332-1339 doi:10.1007/s11605-021-04927-0.

Etiological Diagnosis of Linear-Array Endoscopic Ultrasonography in Distal Common Bile Duct Dilatation.

Yang Y, Feng Y, Cheng G, et al.

Ultrasound quarterly 2022; (38(2)):170-178 doi:10.1097/RUQ.0000000000000553.

The Epidemiology of Annular Pancreas in the United States: A Population-based Study.

Alkhayyat M, Bachour S, Abou Saleh M, et al.

Journal of clinical gastroenterology 2022; (56(2)):186-191 doi:10.1097/MCG.0000000000001531.

Annular pancreas causing pyloric stenosis in a 66-year-old patient treated with gastrojejunostomy: a case report.

Patel P, Diko S, Kulkarni S, et al.

Journal of surgical case reports 2021; (2021(4)):rjab125 doi:10.1093/jscr/rjab125.

Overdosage of HNF1B Gene Associated With Annular Pancreas Detected in Neonate Patients With 17q12 Duplication.

Xiao F, Liu X, Lu Y, et al.

Frontiers in genetics 2021; (12()):615072 doi:10.3389/fgene.2021.615072.

Investigation of annular pancreas through multiple detector spiral CT (MDCT) and MRI.

Zhou Y, Li X

Journal of applied clinical medical physics 2022; (23(1)):e13487 doi:10.1002/acm2.13487.

The diagnostic accuracy of ultrasound and upper gastrointestinal contrast studies for locating atresia/stenosis and intestinal malrotation and detecting annular pancreas in pediatric patients with duodenal atresia/stenosis.

Hosokawa T, Tanami Y, Sato Y, et al.

Journal of medical ultrasonics (2001) 2022; (49(2)):299-309 doi:10.1007/s10396-021-01176-1.

Annular pancreas in neonates; Case series and review of literatures.

Ali Almoamin HH, Kadhem SH, Saleh AM

African journal of paediatric surgery : AJPS 2022; (19(2)):97-101 doi:10.4103/ajps.AJPS_180_20.

Cholangitis secondary to obstructive choledocholithiases in an elderly woman with heterotaxy syndrome with polysplenia: report of a case and brief review of the literature.

Láinez Ramos-Bossini AJ, Córdoba-Peláez P, Redruello-Guerrero P

Clinical journal of gastroenterology 2022; (15(2)):401-406 doi:10.1007/s12328-021-01574-5.

VACTERL syndrome with late presentation of annular pancreas with duodenal web: Case report.

Yoon Y, Dragusin IB, Gallagher ME, Clark P

Radiology case reports 2022; (17(6)):1853-1857 doi:10.1016/j.radcr.2022.02.062.

Annular Pancreas: A Rare Cause of Upper Gastrointestinal Bleeding in Adults.

Kweun JA, Kang HM, Kim JE, Park SJ

The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi 2022; (79(4)):182-186 doi:10.4166/kjg.2022.012.

Adult annular pancreas and its classification under endoscopic ultrasonography.

Fang L, Zhang L, Hou S

Revista espanola de enfermedades digestivas 2023; (115(5)):270-271 doi:10.17235/reed.2022.9103/2022.

Long-Term Impact of Diagnosed Fetal Anomaly on Parental Traumatic Stress, Resilience, and Relationship Satisfaction.

Oftedal A, Bekkhus M, Haugen G, et al.

Journal of pediatric psychology 2023; (48(2)):181-192 doi:10.1093/jpepsy/jsac085.

Annular pancreas causing duodenal obstruction in a 23 year old women managed surgically for gastrojejunostomy; a case report.

Nur NM, Artan A, Omar AA, Ahmed MR

International journal of surgery case reports 2022; (101()):107804 doi:10.1016/j.ijscr.2022.107804.

Pancreatic Divisum Causing Recurrent Pancreatitis in an 8-Year-Old Child.

Tiwari C, Basu S, Makan A, Shah H

Journal of Indian Association of Pediatric Surgeons 2022; (27(5)):655-656 doi:10.4103/jiaps.jiaps_249_21.

Development of gallbladder cancer during follow-up of pancreaticobiliary maljunction: a report of two cases.

Aota T, Tanaka S, Takemura S, et al.

Journal of surgical case reports 2022; (2022(12)):rjac595 doi:10.1093/jscr/rjac595.

Rendezvous-assisted endoscopic retrograde pancreatography in a patient with annular pancreas and coexisting pancreas divisum.

Zhai Y, Li M, Li H, et al.

Endoscopy 2023; (55(S 01)):E559-E560 doi:10.1055/a-2032-3462.

[A Case of Surgical Resection of Advanced Gallbladder Cancer with Adult Annular Pancreas].

Saito T, Matsuo Y, Aoyama Y, et al.

Gan to kagaku ryoho. Cancer & chemotherapy 2023; (50(4)):520-522.

Imaging spectrum of non-neoplastic and neoplastic conditions of the duodenum: a pictorial review.

Del Toro C, Cabrera-Aguirre A, Casillas J, et al.

Abdominal radiology (New York) 2023; (48(7)):2237-2257 doi:10.1007/s00261-023-03909-x.

Annular pancreas as a cause of neonatal duodenal obstruction, a case report.

Gutiérrez-González JA, González De La Torre E, Armijo-Borjón EA, et al.

Journal of surgical case reports 2023; (2023(7)):rjad407 doi:10.1093/jscr/rjad407.

Exome sequencing findings in children with annular pancreas.

Pitsava G, Pankratz N, Lane J, et al.

Molecular genetics & genomic medicine 2023; (11(10)):e2233 doi:10.1002/mgg3.2233.

Diamond-shaped versus side-to-side anastomotic duodenoduodenostomy in laparoscopic management of annular pancreas in children: a single-center retrospective comparative study.

Liang Z, Lan M, Xu X, et al.

Translational pediatrics 2023; (12(10)):1791-1799 doi:10.21037/tp-23-156.

Adult-Onset Annular Pancreas: When to Intervene?

Ali IM, Reddy M VS, Shetty V

Cureus 2024; (16(8)):e67728 doi:10.7759/cureus.67728.

Imaging the Double Bubble: A Case of Duodenal Atresia Detected in Late Pregnancy.

Bora N, Parihar P, Raj N, Shetty ND

Cureus 2024; (16(9)):e68759 doi:10.7759/cureus.68759.

Robotic pancreaticoduodenectomy for portal annular pancreas: how to do it.

Ishida J, Toyama H, Nanno Y, et al.

Surgery today 2025; (55(7)):1004-1007 doi:10.1007/s00595-024-02976-x.

A Case of Robot-Assisted Pylorus-Preserving Pancreatoduodenectomy for Branch-Duct Intraductal Papillary Mucinous Neoplasms Complicated With an Annular Pancreas.

Hayasaki A, Kuriyama N, Usui M, et al.

Asian journal of endoscopic surgery 2025; (18(1)):e70022 doi:10.1111/ases.70022.

Pancreas divisum unmasked: a case report.

Zouaki I, Jarti M, Sadik A, et al.

The Pan African medical journal 2024; (49()):48 doi:10.11604/pamj.2024.49.48.45004.

[A Case of Distal Bile Duct Cancer Associated with Preduodenal Portal Vein].

Suzuki S, Aono T, Maruyama T, et al.

Gan to kagaku ryoho. Cancer & chemotherapy 2024; (51(13)):1378-1380.

Atypical Presentation of Duodenal Atresia in a Newborn With Trisomy 21: A Simulated Case Report and Narrative Review.

Tam CW, Patel S, Massoumi J, et al.

Pediatric annals 2025; (54(4)):e139-e143 doi:10.3928/19382359-20250206-04.

Challenges and outcomes of pancreato-duodenectomy in portal annular pancreas: A single center experience with a systematic review of the literature.

Modak S, Tilloo R, Ahmed Z, et al.

Annals of hepato-biliary-pancreatic surgery 2025; (29(3)):308-316 doi:10.14701/ahbps.25-027.

Annular Pancreas: Insights Into the Diagnosis of a Rare Anatomical Malformation in Pediatric Patients.

Boviatsi D, Zoumpoulis G, Koutrouveli E, et al.

Cureus 2025; (17(6)):e85702 doi:10.7759/cureus.85702.

"Partial Annular Pancreas Causing Obstruction of the First Part of the Duodenum: An Exceedingly Rare Conundrum-A Rare Case Report and Comprehensive Literature Review".

Jha S, Luitel S, Kushwaha N, et al.

Clinical case reports 2025; (13(7)):e70614 doi:10.1002/ccr3.70614.

Multiseptate gallbladder accompanied by an incomplete annular pancreas in a 19-year male patient: A case report.

Nikolovski A, Misimi S, Trpeski S, Atanasov Z

Radiology case reports 2025; (20(10)):5042-5045 doi:10.1016/j.radcr.2025.06.058.

Anomalous pancreaticobiliary duct junction presenting as benign biliary stricture.

Pranami A, Dahale A, Banerjee D, Bhate P

BMJ case reports 2025; (18(8)) doi:10.1136/bcr-2025-266078.

Annular Pancreas in a 13-Year-Old Boy: A Delayed Clinical Presentation of a Congenital Anomaly Highlighting Challenges of Diagnosis.

Mohamed SS, Mead AO, Nur AO

International medical case reports journal 2025; (18()):1153-1158 doi:10.2147/IMCRJ.S549637.

Robotic versus laparoscopic approaches to neonatal annular pancreas: a comparative analysis of surgical outcomes and innovation trade-offs.

Gan Y, Zheng Z, Wang H, et al.

Surgical endoscopy 2025; (39(12)):8033-8042 doi:10.1007/s00464-025-12197-z.

Standardized Diagnosis and Treatment of Pancreaticobiliary Maljunction.

Yan Y, Liu H, Xiao Z, He C

Journal of visualized experiments : JoVE 2025; doi:10.3791/69050.

Prospective evaluation of pancreaticobiliary maljunction using high-frequency ultrasonography in children.

Lai Y, Ling W, Zhou L, et al.

Pediatric radiology 2025; (55(13)):2834-2844 doi:10.1007/s00247-025-06400-5.

From duodenitis to stricture: Decoding the impact of partial annular pancreas over years.

Alok H, Bansal L, Prasad A

Abdominal radiology (New York) 2026; (51(4)):1765-1769 doi:10.1007/s00261-025-05194-2.

Annular Pancreas Presenting with Intermittent Duodenal Obstruction in Early Childhood: A Diagnostic Masquerade.

Rogalidou M, Papagiannis G, Galina P, et al.

Reports (MDPI) 2026; (9(1)) doi:10.3390/reports9010026.