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MRI Findings of Intrinsic and Extrinsic Duodenal Abnormalities and Variations.

Dusunceli Atman E, Erden A, Ustuner E, Uzun C, Bektas M - Korean J Radiol (2015)

Bottom Line: This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and malignant pathologies of the duodenum, including sphincter contraction, major papilla variation, prominent papilla, diverticulum, annular pancreas, duplication cysts, choledochocele, duodenal wall thickening secondary to acute pancreatitis, postbulbar stenosis, celiac disease, fistula, choledochoduodenostomy, external compression, polyps, Peutz-Jeghers syndrome, ampullary carcinoma and adenocarcinoma.MRI is a useful imaging tool for demonstrating duodenal pathology and its anatomic relationships with adjacent organs, which is critical for establishing correct diagnosis and planning appropriate treatment, especially for surgery.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Ankara University School of Medicine, Ankara 06100, Turkey.

ABSTRACT
This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and malignant pathologies of the duodenum, including sphincter contraction, major papilla variation, prominent papilla, diverticulum, annular pancreas, duplication cysts, choledochocele, duodenal wall thickening secondary to acute pancreatitis, postbulbar stenosis, celiac disease, fistula, choledochoduodenostomy, external compression, polyps, Peutz-Jeghers syndrome, ampullary carcinoma and adenocarcinoma. MRI is a useful imaging tool for demonstrating duodenal pathology and its anatomic relationships with adjacent organs, which is critical for establishing correct diagnosis and planning appropriate treatment, especially for surgery.

No MeSH data available.


Related in: MedlinePlus

Duplication cyst.On these coronal T2-weighted MR images, at lateral wall of 2nd portion of duodenum medial to gallbladder, smooth, thin-walled cystic structure (arrow) was noted. Duplication cysts are often encountered incidentally and may cause obstruction and pancreatitis because of their critical location. With MRI, cystic nature and relationship with adjacent structures can be revealed. Duplication cysts need to be differentiated from other cystic lesions (such as choledochal cysts and pancreatic pseudocysts) that may be seen in this location.
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Figure 9: Duplication cyst.On these coronal T2-weighted MR images, at lateral wall of 2nd portion of duodenum medial to gallbladder, smooth, thin-walled cystic structure (arrow) was noted. Duplication cysts are often encountered incidentally and may cause obstruction and pancreatitis because of their critical location. With MRI, cystic nature and relationship with adjacent structures can be revealed. Duplication cysts need to be differentiated from other cystic lesions (such as choledochal cysts and pancreatic pseudocysts) that may be seen in this location.

Mentions: Duplication cysts arise from the recanalization defect in the duodenum lumen in the embryogenic period (7). They are very rare in the GI tractus, and approximately 12% occur in the stomach and duodenum (7). Duodenal duplications are well-circumscribed cystic masses that are seen more frequently in the 2nd and 3rd segments of the duodenum (Fig. 9) (721). These cysts are not typically communicated with the duodenum lumen (717). They are mostly incidental; however, sometimes they may also cause biliary obstruction and pancreatitis because of their location (717). Carcinoma may occur inside duplication cysts, although very rarely. For this reason, intracystic mural nodules and vegetation should be taken into consideration (722).


MRI Findings of Intrinsic and Extrinsic Duodenal Abnormalities and Variations.

Dusunceli Atman E, Erden A, Ustuner E, Uzun C, Bektas M - Korean J Radiol (2015)

Duplication cyst.On these coronal T2-weighted MR images, at lateral wall of 2nd portion of duodenum medial to gallbladder, smooth, thin-walled cystic structure (arrow) was noted. Duplication cysts are often encountered incidentally and may cause obstruction and pancreatitis because of their critical location. With MRI, cystic nature and relationship with adjacent structures can be revealed. Duplication cysts need to be differentiated from other cystic lesions (such as choledochal cysts and pancreatic pseudocysts) that may be seen in this location.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4644744&req=5

Figure 9: Duplication cyst.On these coronal T2-weighted MR images, at lateral wall of 2nd portion of duodenum medial to gallbladder, smooth, thin-walled cystic structure (arrow) was noted. Duplication cysts are often encountered incidentally and may cause obstruction and pancreatitis because of their critical location. With MRI, cystic nature and relationship with adjacent structures can be revealed. Duplication cysts need to be differentiated from other cystic lesions (such as choledochal cysts and pancreatic pseudocysts) that may be seen in this location.
Mentions: Duplication cysts arise from the recanalization defect in the duodenum lumen in the embryogenic period (7). They are very rare in the GI tractus, and approximately 12% occur in the stomach and duodenum (7). Duodenal duplications are well-circumscribed cystic masses that are seen more frequently in the 2nd and 3rd segments of the duodenum (Fig. 9) (721). These cysts are not typically communicated with the duodenum lumen (717). They are mostly incidental; however, sometimes they may also cause biliary obstruction and pancreatitis because of their location (717). Carcinoma may occur inside duplication cysts, although very rarely. For this reason, intracystic mural nodules and vegetation should be taken into consideration (722).

Bottom Line: This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and malignant pathologies of the duodenum, including sphincter contraction, major papilla variation, prominent papilla, diverticulum, annular pancreas, duplication cysts, choledochocele, duodenal wall thickening secondary to acute pancreatitis, postbulbar stenosis, celiac disease, fistula, choledochoduodenostomy, external compression, polyps, Peutz-Jeghers syndrome, ampullary carcinoma and adenocarcinoma.MRI is a useful imaging tool for demonstrating duodenal pathology and its anatomic relationships with adjacent organs, which is critical for establishing correct diagnosis and planning appropriate treatment, especially for surgery.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Ankara University School of Medicine, Ankara 06100, Turkey.

ABSTRACT
This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and malignant pathologies of the duodenum, including sphincter contraction, major papilla variation, prominent papilla, diverticulum, annular pancreas, duplication cysts, choledochocele, duodenal wall thickening secondary to acute pancreatitis, postbulbar stenosis, celiac disease, fistula, choledochoduodenostomy, external compression, polyps, Peutz-Jeghers syndrome, ampullary carcinoma and adenocarcinoma. MRI is a useful imaging tool for demonstrating duodenal pathology and its anatomic relationships with adjacent organs, which is critical for establishing correct diagnosis and planning appropriate treatment, especially for surgery.

No MeSH data available.


Related in: MedlinePlus