Computed tomography examination of periampullary neoplasms

Darweesh, Reda M.A.; Thorsen, M K; Dodds, Wylie J.; Kishk, Soad M.A.; Lawson, Thomas L.; Stewart, Edward T.

doi:10.1016/0149-936x(88)90027-6

Cited by 5 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Honickman et al [5] and Baron et al [6] reported that sonography was regarded as less reliable in determining the level and cause of obstruction, with reported accuracy of 27-60% and 23-38%, respectively, compared with 73-88% and 70-76% for CT. In a recent report, however, sonography was regarded as more reliable than CT [8], with an accuracy of 95% in determining the level and 88% in identifying the cause, compared with 90% and 63% for CT. Darweesh et al [4] reported that CT is more reliable in the diagnosis of periampullary neoplasm. In our series, in which 11 patients underwent both sonography and CT, sonography was more reliable in identifying the tumor mass and depicting the dilatation of the common bile duct and pancreatic duct.…”

Section: Discussionmentioning

confidence: 98%

“…Sonography and CT are now being used in the evaluation of obstructive jaundice, and sonographic and CT appearances of carcinoma of the ampulla of Vater have been reported [2][3][4]. However, case materials are limited and, to the best of our knowledge, there has been only one English-language report concerning the relative usefulness of sonography and CT in the evaluation of periampullary carcinoma [4]. In this paper, we describe the sonographic and CT appearances and comparative usefulness of sonography and CT in the diagnosis of carcinoma of the ampulla of Vater.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Carcinoma of the ampulla of Vater: Sonographic and CT diagnosis

Lim

Lee

et al. 1993

Abdom Imaging

View full text Add to dashboard Cite

Twenty patients with carcinoma of the ampulla of Vater were studied with sonography (N = 9) or both sonography and CT (N = 11). The tumor was shown by sonography in 16 patients (80%) as a small, round or oval, fairly well delineated mass in between the dilated distal common bile duct and duodenum which was delineated owing to luminal fluid or gas (N = 13); or as a polypoid mass within the dilated distal common bile duct resulting in abrupt obstruction (N = 3). In the remaining four patients, the mass was not delineated. Bile ducts were dilated down to the level of mass or ampullary region in all cases (100%), while the pancreatic duct was dilated in five cases (45%). We believe that sonography is the technique of initial choice in the diagnosis of carcinoma of the ampulla of Vater by identifying the mass at the distal end of the dilated common bile duct and/or pancreatic duct.

show abstract

Section: Discussionmentioning

confidence: 98%

mentioning

confidence: 99%

Carcinoma of the ampulla of Vater: Sonographic and CT diagnosis

Lim

Lee

et al. 1993

Abdom Imaging

View full text Add to dashboard Cite

show abstract

Ampullary carcinoma: Demonstration by current MR techniques

Semelka

Kelekis

John

et al. 1997

Magnetic Resonance Imaging

View full text Add to dashboard Cite

The objective of this study was to demonstrate the appearance of ampullary carcinoma using current MR techniques, including fat suppression, gadolinium enhancement, and MR cholangiography. Nine patients with ampullary carcinoma were examined by MRI at 1.5 T. MR examinations included T1-weighted spoiled gradient echo, T1-weighted fat-suppressed, and immediate postgadolinium spoiled gradient echo images for all patients and MR cholangiography for three patients. The imaging features of ampullary carcinomas, including tumor size and morphology, signal intensity, and enhancement characteristics, were determined. Ampullary carcinomas shown on MR images ranged in size from 1.5 to 5.5 cm. Tumors were low in signal intensity on precontrast T1-weighted spoiled gradient echo and T1-weighted fat-suppressed images relative to normal pancreatic tissue and enhanced less than normal pancreas on immediate postgadolinium spoiled gradient echo images. Tumor conspicuity was greatest on immediate postgadolinium spoiled gradient echo images. MR cholangiography demonstrated high grade obstruction of the common bile duct and mild dilatation of the pancreatic duct at the level of the ampulla with abrupt termination of the ducts in two untreated patients and moderate dilatation of the common bile duct in one patient who had a biliary stent. Ampullary carcinomas can be demonstrated on MR images as small masses arising at the ampulla. Tumors are well defined on immediate postgadolinium spoiled gradient echo images.

show abstract

Periampullary Carcinoma

STANISLAW¹,

ZWEMER²

2010

High-Yield Imaging: Gastrointestinal

View full text Add to dashboard Cite

Computed tomography examination of periampullary neoplasms

Cited by 5 publications

References 5 publications

Carcinoma of the ampulla of Vater: Sonographic and CT diagnosis

Carcinoma of the ampulla of Vater: Sonographic and CT diagnosis

Ampullary carcinoma: Demonstration by current MR techniques

Periampullary Carcinoma

Contact Info

Product

Resources

About