1. Liaqat N. et al. Enteric duplication in children: A case series. Afr J Paediatr Surg.2014; Jul-Sep; 11(3): 211-214.

2. Ademuyiwa A.O.et al. Duplication cyst of ascending colon presenting as an ileal volvulus in a child: A case report and review of literature. Afr J Paediatr Surg. 2012 (9): 237-239.

3. Ramakrishna Н.К. Intestinal duplication. Indian Journal of Surgery. 2008; Dec (70): 270.

4. Jadlowiec C.C. et al. Presentation and Surgical Management of Duodenal Duplication in Adults. Case Rep Surg.2015; 659150.

5. Zhe Z. et al. Double esophageal duplication cysts, with ectopic gastric mucosa: a case report. J Cardiothorac Surg. 2013; Dec1(8): 221.

6. Sharma S., Yadav A.K., Mandal A.K. Enteric Duplication Cysts in Children: A Clinicopathological Dilemma. J ClinDiagn Res. 2015; Aug. 9(8): EC08-11.

7. Yuen C.H. Total colorectal and terminal ileal duplication presenting as intussusception and intestinal obstruction. World J Gastroenterol. 2012; Nov. 21; 18(43): 6338-6340.

8. Rattan K.N., Bansal S., Dhamija A. Gastrointestinal Duplication Presenting as Neonatal Intestinal Obstruction: An Experience of 15 Years at Tertiary Care Centre. J Neonatal Surg.2017; Jan 1; 6(1):5.

9. Di Serafino M., Mercogliano C., Vallone G. Ultrasound evaluation of the enteric duplication cyst: the gut signature. J Ultrasound. 2015; Nov. 23; 19(2): 131-3.

10. Watanobe I. et al. Laparoscopic resection of an intra-abdominal esophageal duplication cyst: a case report and literature review. Case Rep Surg. 2015; 940768.

11. Banchini F. et al. Duplication of the transverse colon in an adult: Case report and review. World J Gastroenterol. 2013. Jan. 28; 19(4): 586-589.

12. AbdalkaderМ., Al Hassan S., Taha А. Complicated Gastric Duplication Cyst in an Adult Patient: Uncommon presentation of an uncommon disease. J Radiol Case Rep. 2017; Aug; 11(8): 16-23.

13. Patel M.P. et al. Duplication cyst of the pylorus - a rare cause of gastric outlet obstruction in the newborn. J Postgrad Med. 1997; 43:43.

14. Weitman E., Al Diffalha S., Centeno B., An isolated intestinal duplication cyst masquerading as a mucinous cystic neoplasm of the pancreas: A case report and review of the literature. Int J Surg Case Rep.2017; 39: 208-211.

15. Holcomb G.W. III,Patrick Murphy J.Ashcraft’s Pediatric Surgery - 5th Edition. -Hardcover: W.B. Saunders Company, 2010; 1128.

16. Stringer M.D., Spitz L., Abel R. Management of alimentary tract duplication in children. Brit. J. Surg. 1995; 74-78.

17. Kusunoki N. Adenocarcinoma arising in a tubular duplication of the jejunum. J Gastroenterol. 2003; 38(8): 781-5.

18. Соколов Ю.Ю.и соавт. Диагностика и хирургическая коррекция удвоений пищеварительного тракта у детей. Детская хирургия. 2017; 21(3): 40-51

19. AtalarМ.Н., Cankorkmaz L., OzerН., Koyluoglu G. A huge duplication cyst of the ileum.Pol J Radiol. 2013; Jul-Sep; 78(3): 70-73.

20. Baumann J.L., Patel C. Enteric duplication cyst containing squamous and respiratory epithelium: an interesting case of a typically pediatric entity presenting in an adult patient. Case Rep Gastrointest Med.2014; 790326.

21. Kuraoka K. et al. Adenocarcinoma arising from a gastric duplicationcystwithinvasiontothestomach:a case report with literature review. J ClinPathol.2004; Apr; 57(4): 428-31.

22. Kim T.H. Papillary adenocarcinoma arising in a tubular duplication of the jejunum. Br J Radiol. 2010; Mar; 83(987): 61-64.

23. Kyong-Hee J. et al. Adenocarcinoma Arising in a Duplication of the Cecum. The Korean Journal of Internal Medicine. 2012; 27(1): 103-106.

24. Долецкий С.Я., Давтян Э.М. Удвоение пищеварительной трубки у детей. Ереван: Айстан. 1979

25. BalakrishnanК. et al. Foregut Duplication Cysts in Children. JSLS. 2017; Apr-Jun; 21(2): 2017.00017.

26. Puligandla P.S. et al. Gastrointestinal duplications. J Pediatr Surg. 2003; May; 38(5): 740-744.

27. Сташук Г.А. и соавт. Кистозное удвоение тощей кишки. Вестник рентгенологии и радиологии. 2015 (Июль-Август): 35-39

28. Herranz B.A. et al. Intestinal cystic duplication. Case report. Arch Argent Pediatr. 2017; Aug 1; 115(4): 233-236.

29. Mayer J.P., Bettolli M. Alimentary tract duplications in newborns and children: Diagnostic aspects and the role of laparoscopic treatment. World Journal of Gastroenterology.2014; Oct 21; 20(39): 14263-14271.

30. Petrović S. et al. Persistent wheezing as manifestation of esophageal tubular duplication cyst. Ups J Med Sci. 2011; Aug; 116(3): 216-219.

31. Kolomainen D., Hurley P.R., Ebbs S.R. Esophageal duplication cyst: case report and review of the literature. Dis Esophagus. 2017; Nov 1; 11(1): 62-65.

32. Батаев С.-Х.М., Разумовский А.Ю.Бронхоэнтерогенные образования заднего отдела средостения. Часть 1. Удвоения пищевода. Дет. хирургия. 2000(1): 44-47

33. Novellis P. et al.Endoultrasonography (EUS) examination of the esophagus in the diagnosis of esophageal duplication: a case report and a review of a literature. Eur Rev Med Pharmacol Sci. 2015; Aug; 19(16): 3041-3045.

34. Kapoor K. et al. A rare cause of wheezing in an infant: Esophageal duplication cyst. Indian J Crit Care Med. 2014; Jul; 18(7): 464-6.

35. Haller J.A. et al. Life-Threatening Respiratory Distress from Mediastinal Masses in Infants. The Ann Of Thoracic Sur. 1975; Apr; 19(4): 364-370.

36. Takemura M., Yoshida K., Morimura K. Тhoracoscopic resection of thoracic esophageal duplication cyst containing ectopic pancreatic tissue in adult. J Cardiothorac Surg. 2011; Sep 25(6): 118.

37. Liu R., Adler D.G. Duplication cysts: Diagnosis, management, and the role of endoscopic ultrasound. Endosc Ultrasound. 2014; Jul; 3(3):152-60.

38. Passos I.D. et al. Gastric duplication cyst (gdc) associated with ectopic pancreas: Case report and review of the literature. Int J Surg Case Rep. 2017; 31: 109-113.

39. Земляной В. П., Сигуа Б. В., Данилов А. М. Редкие хирургические заболевания желудка: учеб. пособие. СПб.: Издательство ГБОУ ВПО СЗГМУ им. И.И. Мечникова. 2013

40. Kim Y.-S. et al. Intestinal Duplication Cyst Misdiagnosed as Meckel’s Diverticulum. Chinese Medical Journal. 2016; Jan(20): 235-236

41. Батаев С.-Х.М., Пупышев М.Л., Рындин В.Д. Дупликационная киста желудка у ребенка 3 лет. Хирургия. 2013(9): 63-65.

42. Демидов В.Н., Кучеров Ю.И., Машинец Н.В. Пренатальная диагностика редких врожденных пороков и синдромов. Удвоение желудка. Пренатальная диагностика. 2010; 9(4): 320-322.

43. Mirza B.Pyloroduodenal Duplication Cyst: The Rarest Alimentary Tract Duplication. APSP J Case Rep. 2012; Sep-Dec; 3(3): 19

44. Кригер А.Г. и соавт. Дупликационная киста желудка с малигнизацией. Хирургия. 2014(8): 79-80

45. Laskowska К. et al. Use of Diagnostic Imaging in the Evaluation of Gastrointestinal Tract Duplications. Pol J Radiol. 2014; 79: 243-250.

46. Simon R. et al. Intrapancreatic Enteric Duplication Cyst Masquerading as Groove Pancreatitis. ACG Case Rep J.2017; Dec 6; 4: 123.

47. Chen J.J.et al. Meta-analysis: the clinical features of the duodenal duplication cyst. J Pediatr Surg.2010; Aug;45(8): 1598-1606.

48. Merrot T. et al. Duodenal duplications. Clinical characteristics, embryological hypotheses, histological findings, treatment. European Journal of Pediatric Surgery.2006;16(1):18-23.

49. Byun J. et al. Laparoscopic partial cystectomy with mucosal stripping of extraluminal duodenal duplication cysts. World J Gastroenterol.2014; Jan 28; 20(4): 1123-1126.

50. Li L., Jin-Zhe Z., Yan Xia W. Vascular classification for small intestinal duplications. Experience with 80 cases. J Pediatr Surg. 1998; 33: 1243-1245.

51. Catalano Р. etal.Ileocecal duplication cysts: is the loss of the valve always necessary? Journal of Pediatric Surgery. 2014. June; 49(6): 1049-1051.

52. Niu В.В., Bai Y.Z. Ileal tubular duplication in a 4-year-old girl. Surgery. 2015; Jan; 157(1): 166-167.

53. Dillman J.R. et al.Ileal dysgenesis coexisting with multiple enteric duplication cysts in a child-MR enterography, CT, and Meckel scan appearances. PediatrRadiol. 2012 (42): 1517-1522.

54. Kulkarni B. et al. Rectal duplication. Journal of postgraduate medicine. 1995(2): 49-51.

55. Ceriotti M., Lacelli F., Saccomani G.E. Wide rectal duplication cyst in an adult resected by anterior approach: efficacy and recurrence. J Surg Case Rep. 2017; Jun 23; 2017(6).

56. Ivekovic H. et al. Endoscopic muscularis excavation of arectal duplication cyst. Endoscopy. 2015; 47(1): 522-524.

57. El Fahssi M. et al. Rectal duplication in adults: a rare cause of pelvic mass. Pan Afr Med J.2015; Dec 10;22:346.

58. Kumar A.et al. Multiple short-segment colonic duplications. PediatrRadiol.2008; May;38(5):567-70.

59. Hao-Cheng C. et al. Y-Shaped Colonic Duplication: Report of A Case and Literature Review. Chang Gung Med J. 2011;3 4(6): 43-47.

60. Tabari A.K., Mirshemirani A., TabariN.K. Complete colonic duplication in children.Caspian J Intern Med.2012; Spring; 3(2): 436-439.

61. Platt K.D. Anorectal Malformation with Colonic Duplication and Dual Rectovaginal Fistulae: Case Report. Int J Surg Res. 2016; 1(2): 6-9.

62. Maggi U. et al. Prenatal and accurate perinatal diagnosis of type 2 H or ductular duplicate gallbladder. BMC Pediatr.2018; Feb 7; 18(1):38.

63. Gorecki Р.J. et al. Double Gallbladder Originating from Left Hepatic Duct: A Case Report and Review of Literature. JSLS. 1998; Oct-Dec; 2(4): 337-339.

64. Nikitenko A.I. et al. Anomalies of the gallbladder in the practice of endosurgery.Izbrannyyestranitsyistoriiiaktual’nyyevoprosysovremennoykhirurgii: sb. nauch. M.: Moskva, 2013: 60-62.

65. Musleh M.G. et al. Laparoscopic double cholecystectomy for duplicated gallbladder: A case report. Int J Surg Case Rep.2017; Nov 27;41:502-504

66. Rajapandian S. Laparoscopic management of ‘Y-shaped’ gallbladder duplication with review of literature. J Minim Access Surg.2017; Jul-Sep;13(3):231-233

67. Boyden E.A. The accessory gallbladder: an embryological and comparative study of aberrant biliary vesicles occuring in man and the domestic mammals. American Journal of Anatomy. 1926;38: 177-231.

1. Liaqat N. et al. Enteric duplication in children: A case series. Afr J Paediatr Surg.2014; Jul-Sep; 11(3): 211-214.

2. Ademuyiwa A.O.et al. Duplication cyst of ascending colon presenting as an ileal volvulus in a child: A case report and review of literature. Afr J Paediatr Surg. 2012 (9): 237-239.

3. Ramakrishna N.K. Intestinal duplication. Indian Journal of Surgery. 2008; Dec (70): 270.

4. Jadlowiec C.C. et al. Presentation and Surgical Management of Duodenal Duplication in Adults. Case Rep Surg.2015; 659150.

5. Zhe Z. et al. Double esophageal duplication cysts, with ectopic gastric mucosa: a case report. J Cardiothorac Surg. 2013; Dec1(8): 221.

6. Sharma S., Yadav A.K., Mandal A.K. Enteric Duplication Cysts in Children: A Clinicopathological Dilemma. J ClinDiagn Res. 2015; Aug. 9(8): EC08-11.

7. Yuen C.H. Total colorectal and terminal ileal duplication presenting as intussusception and intestinal obstruction. World J Gastroenterol. 2012; Nov. 21; 18(43): 6338-6340.

8. Rattan K.N., Bansal S., Dhamija A. Gastrointestinal Duplication Presenting as Neonatal Intestinal Obstruction: An Experience of 15 Years at Tertiary Care Centre. J Neonatal Surg.2017; Jan 1; 6(1):5.

9. Di Serafino M., Mercogliano C., Vallone G. Ultrasound evaluation of the enteric duplication cyst: the gut signature. J Ultrasound. 2015; Nov. 23; 19(2): 131-3.

10. Watanobe I. et al. Laparoscopic resection of an intra-abdominal esophageal duplication cyst: a case report and literature review. Case Rep Surg. 2015; 940768.

11. Banchini F. et al. Duplication of the transverse colon in an adult: Case report and review. World J Gastroenterol. 2013. Jan. 28; 19(4): 586-589.

12. AbdalkaderM., Al Hassan S., Taha A. Complicated Gastric Duplication Cyst in an Adult Patient: Uncommon presentation of an uncommon disease. J Radiol Case Rep. 2017; Aug; 11(8): 16-23.

13. Patel M.P. et al. Duplication cyst of the pylorus - a rare cause of gastric outlet obstruction in the newborn. J Postgrad Med. 1997; 43:43.

14. Weitman E., Al Diffalha S., Centeno B., An isolated intestinal duplication cyst masquerading as a mucinous cystic neoplasm of the pancreas: A case report and review of the literature. Int J Surg Case Rep.2017; 39: 208-211.

15. Holcomb G.W. III,Patrick Murphy J.Ashcraft’s Pediatric Surgery - 5th Edition. -Hardcover: W.B. Saunders Company, 2010; 1128.

16. Stringer M.D., Spitz L., Abel R. Management of alimentary tract duplication in children. Brit. J. Surg. 1995; 74-78.

17. Kusunoki N. Adenocarcinoma arising in a tubular duplication of the jejunum. J Gastroenterol. 2003; 38(8): 781-5.

18. Sokolov Yu.Yu.i soavt. Diagnostika i khirurgicheskaya korrektsiya udvoenii pishchevaritel'nogo trakta u detei. Detskaya khirurgiya. 2017; 21(3): 40-51

19. AtalarM.N., Cankorkmaz L., OzerN., Koyluoglu G. A huge duplication cyst of the ileum.Pol J Radiol. 2013; Jul-Sep; 78(3): 70-73.

20. Baumann J.L., Patel C. Enteric duplication cyst containing squamous and respiratory epithelium: an interesting case of a typically pediatric entity presenting in an adult patient. Case Rep Gastrointest Med.2014; 790326.

21. Kuraoka K. et al. Adenocarcinoma arising from a gastric duplicationcystwithinvasiontothestomach:a case report with literature review. J ClinPathol.2004; Apr; 57(4): 428-31.

22. Kim T.H. Papillary adenocarcinoma arising in a tubular duplication of the jejunum. Br J Radiol. 2010; Mar; 83(987): 61-64.

23. Kyong-Hee J. et al. Adenocarcinoma Arising in a Duplication of the Cecum. The Korean Journal of Internal Medicine. 2012; 27(1): 103-106.

24. Doletskii S.Ya., Davtyan E.M. Udvoenie pishchevaritel'noi trubki u detei. Erevan: Aistan. 1979

25. BalakrishnanK. et al. Foregut Duplication Cysts in Children. JSLS. 2017; Apr-Jun; 21(2): 2017.00017.

26. Puligandla P.S. et al. Gastrointestinal duplications. J Pediatr Surg. 2003; May; 38(5): 740-744.

27. Stashuk G.A. i soavt. Kistoznoe udvoenie toshchei kishki. Vestnik rentgenologii i radiologii. 2015 (Iyul'-Avgust): 35-39

28. Herranz B.A. et al. Intestinal cystic duplication. Case report. Arch Argent Pediatr. 2017; Aug 1; 115(4): 233-236.

29. Mayer J.P., Bettolli M. Alimentary tract duplications in newborns and children: Diagnostic aspects and the role of laparoscopic treatment. World Journal of Gastroenterology.2014; Oct 21; 20(39): 14263-14271.

30. Petrović S. et al. Persistent wheezing as manifestation of esophageal tubular duplication cyst. Ups J Med Sci. 2011; Aug; 116(3): 216-219.

31. Kolomainen D., Hurley P.R., Ebbs S.R. Esophageal duplication cyst: case report and review of the literature. Dis Esophagus. 2017; Nov 1; 11(1): 62-65.

32. Bataev S.-Kh.M., Razumovskii A.Yu.Bronkhoenterogennye obrazovaniya zadnego otdela sredosteniya. Chast' 1. Udvoeniya pishchevoda. Det. khirurgiya. 2000(1): 44-47

33. Novellis P. et al.Endoultrasonography (EUS) examination of the esophagus in the diagnosis of esophageal duplication: a case report and a review of a literature. Eur Rev Med Pharmacol Sci. 2015; Aug; 19(16): 3041-3045.

34. Kapoor K. et al. A rare cause of wheezing in an infant: Esophageal duplication cyst. Indian J Crit Care Med. 2014; Jul; 18(7): 464-6.

35. Haller J.A. et al. Life-Threatening Respiratory Distress from Mediastinal Masses in Infants. The Ann Of Thoracic Sur. 1975; Apr; 19(4): 364-370.

36. Takemura M., Yoshida K., Morimura K. Thoracoscopic resection of thoracic esophageal duplication cyst containing ectopic pancreatic tissue in adult. J Cardiothorac Surg. 2011; Sep 25(6): 118.

37. Liu R., Adler D.G. Duplication cysts: Diagnosis, management, and the role of endoscopic ultrasound. Endosc Ultrasound. 2014; Jul; 3(3):152-60.

38. Passos I.D. et al. Gastric duplication cyst (gdc) associated with ectopic pancreas: Case report and review of the literature. Int J Surg Case Rep. 2017; 31: 109-113.

39. Zemlyanoi V. P., Sigua B. V., Danilov A. M. Redkie khirurgicheskie zabolevaniya zheludka: ucheb. posobie. SPb.: Izdatel'stvo GBOU VPO SZGMU im. I.I. Mechnikova. 2013

40. Kim Y.-S. et al. Intestinal Duplication Cyst Misdiagnosed as Meckel’s Diverticulum. Chinese Medical Journal. 2016; Jan(20): 235-236

41. Bataev S.-Kh.M., Pupyshev M.L., Ryndin V.D. Duplikatsionnaya kista zheludka u rebenka 3 let. Khirurgiya. 2013(9): 63-65.

42. Demidov V.N., Kucherov Yu.I., Mashinets N.V. Prenatal'naya diagnostika redkikh vrozhdennykh porokov i sindromov. Udvoenie zheludka. Prenatal'naya diagnostika. 2010; 9(4): 320-322.

43. Mirza B.Pyloroduodenal Duplication Cyst: The Rarest Alimentary Tract Duplication. APSP J Case Rep. 2012; Sep-Dec; 3(3): 19

44. Kriger A.G. i soavt. Duplikatsionnaya kista zheludka s malignizatsiei. Khirurgiya. 2014(8): 79-80

45. Laskowska K. et al. Use of Diagnostic Imaging in the Evaluation of Gastrointestinal Tract Duplications. Pol J Radiol. 2014; 79: 243-250.

46. Simon R. et al. Intrapancreatic Enteric Duplication Cyst Masquerading as Groove Pancreatitis. ACG Case Rep J.2017; Dec 6; 4: 123.

47. Chen J.J.et al. Meta-analysis: the clinical features of the duodenal duplication cyst. J Pediatr Surg.2010; Aug;45(8): 1598-1606.

48. Merrot T. et al. Duodenal duplications. Clinical characteristics, embryological hypotheses, histological findings, treatment. European Journal of Pediatric Surgery.2006;16(1):18-23.

49. Byun J. et al. Laparoscopic partial cystectomy with mucosal stripping of extraluminal duodenal duplication cysts. World J Gastroenterol.2014; Jan 28; 20(4): 1123-1126.

50. Li L., Jin-Zhe Z., Yan Xia W. Vascular classification for small intestinal duplications. Experience with 80 cases. J Pediatr Surg. 1998; 33: 1243-1245.

51. Catalano R. etal.Ileocecal duplication cysts: is the loss of the valve always necessary? Journal of Pediatric Surgery. 2014. June; 49(6): 1049-1051.

52. Niu V.V., Bai Y.Z. Ileal tubular duplication in a 4-year-old girl. Surgery. 2015; Jan; 157(1): 166-167.

53. Dillman J.R. et al.Ileal dysgenesis coexisting with multiple enteric duplication cysts in a child-MR enterography, CT, and Meckel scan appearances. PediatrRadiol. 2012 (42): 1517-1522.

54. Kulkarni B. et al. Rectal duplication. Journal of postgraduate medicine. 1995(2): 49-51.

55. Ceriotti M., Lacelli F., Saccomani G.E. Wide rectal duplication cyst in an adult resected by anterior approach: efficacy and recurrence. J Surg Case Rep. 2017; Jun 23; 2017(6).

56. Ivekovic H. et al. Endoscopic muscularis excavation of arectal duplication cyst. Endoscopy. 2015; 47(1): 522-524.

57. El Fahssi M. et al. Rectal duplication in adults: a rare cause of pelvic mass. Pan Afr Med J.2015; Dec 10;22:346.

58. Kumar A.et al. Multiple short-segment colonic duplications. PediatrRadiol.2008; May;38(5):567-70.

59. Hao-Cheng C. et al. Y-Shaped Colonic Duplication: Report of A Case and Literature Review. Chang Gung Med J. 2011;3 4(6): 43-47.

60. Tabari A.K., Mirshemirani A., TabariN.K. Complete colonic duplication in children.Caspian J Intern Med.2012; Spring; 3(2): 436-439.

61. Platt K.D. Anorectal Malformation with Colonic Duplication and Dual Rectovaginal Fistulae: Case Report. Int J Surg Res. 2016; 1(2): 6-9.

62. Maggi U. et al. Prenatal and accurate perinatal diagnosis of type 2 H or ductular duplicate gallbladder. BMC Pediatr.2018; Feb 7; 18(1):38.

63. Gorecki R.J. et al. Double Gallbladder Originating from Left Hepatic Duct: A Case Report and Review of Literature. JSLS. 1998; Oct-Dec; 2(4): 337-339.

64. Nikitenko A.I. et al. Anomalies of the gallbladder in the practice of endosurgery.Izbrannyyestranitsyistoriiiaktual’nyyevoprosysovremennoykhirurgii: sb. nauch. M.: Moskva, 2013: 60-62.

65. Musleh M.G. et al. Laparoscopic double cholecystectomy for duplicated gallbladder: A case report. Int J Surg Case Rep.2017; Nov 27;41:502-504

66. Rajapandian S. Laparoscopic management of ‘Y-shaped’ gallbladder duplication with review of literature. J Minim Access Surg.2017; Jul-Sep;13(3):231-233

67. Boyden E.A. The accessory gallbladder: an embryological and comparative study of aberrant biliary vesicles occuring in man and the domestic mammals. American Journal of Anatomy. 1926;38: 177-231.