Benign Tumors of the Stomach and Duodenum

Levine, Marc S.

doi:10.1016/b978-1-4160-2332-6.50040-3

Cited by 14 publications

(16 citation statements)

References 116 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A heterotopic pancreas occurs throughout the GI tract, most commonly in the stomach, followed by the duodenum and jejunum ( 5 ). In the stomach, a heterotopic pancreas tends to be located along the greater curvature of the gastric antrum within 6 cm of the pyloric canal; whereas, in the duodenum, it tends to be located in the proximal duodenum between the duodenal bulb and the ampulla of Vater ( 6 , 7 ). Histologically, a heterotopic pancreas is composed of all of the pancreatic elements, including acini, islets of Langerhans, and ductal structures ( Fig.…”

Section: Congenital Lesionsmentioning

confidence: 99%

“…A barium study indicates that Brunner's gland hyperplasia commonly appears as smooth, polypoid lesions of the duodenum and may show markedly thickened, irregular folds in the proximal duodenum because of concomitant duodenitis ( 26 ). Moreover, Brunner's gland hyperplasia may be detected on transabdominal US as a lesion with a heterogeneous echotexture because of multiple small cysts ( 27 ).…”

Section: Miscellaneous Lesionsmentioning

confidence: 99%

See 1 more Smart Citation

Cystic Lesions of the Gastrointestinal Tract: Multimodality Imaging with Pathologic Correlations

et al. 2010

View full text Add to dashboard Cite

The cystic lesions of the gastrointestinal (GI) tract demonstrate the various pathologic findings. Some lesions may present a diagnostic challenge because of non-specific imaging features; however, other lesions are easily diagnosed using characteristic radiologic features and anatomic locations. Cystic masses from the GI tract can be divided into several categories: congenital lesions, neoplastic lesions (cystic neoplasms, cystic degeneration of solid neoplasms), and other miscellaneous lesions. In this pictorial review, we describe the pathologic findings of various cystic lesions of the GI tract as well as the radiologic features of GI cystic lesions from several imaging modalities including a barium study, transabdominal ultrasound (US), computed tomography (CT), and magnetic resonance (MR) imaging.

show abstract

Section: Congenital Lesionsmentioning

confidence: 99%

Section: Miscellaneous Lesionsmentioning

confidence: 99%

Cystic Lesions of the Gastrointestinal Tract: Multimodality Imaging with Pathologic Correlations

et al. 2010

View full text Add to dashboard Cite

show abstract

“…The feature of blurred serosa is very closely correlated with the histological feature of a lobular structure of the acinous tissue at the margin [16]. Since most GEPs are exophytic growth pattern (64.7% [11/17]) and GEPs is not a true neoplasms but a hamartoma that flat pancreatic acinar formation and duct development histologically [6][7][8], so it is of high possibility for GEPs to have fat space between the tumor and serosal layer. As for GISTs, the main endoscopic finding of it is a nonspecific smooth bulge covered with normal mucosa, which is common to all subepithelial lesions [9], so the possibility for GISTs to have fat space between the tumor and serosal layer is extremely low.…”

Section: Discussionmentioning

confidence: 97%

“…Although the majority of patients with GEPs were asymptomatic, a few patients may have clinical manifestations due to stimulation of hormones and enzymes secreted by the ectopic pancreas [11]. As the most common subepithelial lesions, GISTs account for 90% of gastric submucosal tumors [8,9], And it is difficult to differentiate GEPs from GSTs, so we compare the CT features of GEPs and GSTs to help us make the correct diagnosis.…”

Section: Discussionmentioning

confidence: 99%

CT differentiation of gastric ectopic pancreas from gastric stromal tumors

Wang

LIU

Yang

et al. 2020

Preprint

View full text Add to dashboard Cite

BackgroundGastric ectopic pancreas (GEPs) is a rare developmental anomaly which is difficult to differentiate it from submucosal tumor such as gastrointestinal stromal tumor (GIST) by imaging methods. So we retrospectively investigated the CT features of them to help us make the correct diagnosis.Materials and MethodsThis study enrolled 17 GEPs and 119 GSTs, which were proven pathologically. We assessed clinical and CT features to identify significant differential features of GEPs from GSTs using univariate and multivariate analyses.ResultsIn univariate analysis, among all clinicoradiologic features, features of age, symptom, tumor marker, location, contour, blurred serosa or fat-line of peritumor, necrosis, calcification, CT attenuation value of unenhancement phase/arterial phase/portal venous phase (CTu/CTa/CTp), the CT attenuation value of arterial phase/portal venous phase minus that of unenhanced phase (DEAP/DEPP), long diameter (LD), short diameter (SD) were considered statistically significant for the differentiation of them. And the multivariate analysis revealed that location, blurred serosa or fat-line of peritumor, necrosis and DEPP were independent factors affecting the identification of them.What's more, ROC analysis showed that the test efficiency of CTp was perfect(AUC= 0.900).ConclusionLocation, blurred serosa or fat-line of peritumor, necrosis and DEPP are useful CT differentiators of GEPs from GSTs. In addition, the test efficiency of CTp in differentiating them was perfect (AUC=0.900).

show abstract

“…Endoscopic ultrasonography (EUS) and computerized tomography (CT) are frequently used for the diagnosis of gastric submucosal mass lesions. Because gastrointestinal stromal tumor (GIST) is the most common gastric submucosal mass lesion, heterotopic pancreas is usually confused with GIST at EUS or CT. 20 It is difficult to distinguish ectopic pancreas from gastric GIST at CT or EUS, because there are no characteristic findings of ectopic gastric pancreas. 15,21,22 However, recent studies 23,24 have suggested that combined use of some imaging features (endoluminal growth pattern, ill-defined border, and prepyloric location) of gastric ectopic pancreas can help distinguish it from GIST.…”

Section: Ormentioning

confidence: 99%

Heterotopic Pancreatic Pseudocyst Radiologically Mimicking Gastrointestinal Stromal Tumor

Sarsenov

Tırnaksız

Doğrul

et al. 2015

International Surgery

View full text Add to dashboard Cite

Heterotopic pancreas is a relatively common variant of foregut embryologic dystopia that can be described as pancreatic tissue found outside the normal anatomic location, being independent from vascular supply of normal pancreas. Having all features of pancreatic tissue except for the major duct structures, this ectopic tissue may be clinically recognized when pathologic changes take place. Inflammation, hemorrhagic or obstructive states, and eventually malignancy-related problems may become a diagnostic challenge for clinician and finally lead to consequences of misdiagnosis. In this article we will discuss a case of heterotopic pancreatic tissue located in gastric cardia, which was diagnosed preoperatively as gastrointestinal stromal tumor.

show abstract

Benign Tumors of the Stomach and Duodenum

Cited by 14 publications

References 116 publications

Cystic Lesions of the Gastrointestinal Tract: Multimodality Imaging with Pathologic Correlations

Cystic Lesions of the Gastrointestinal Tract: Multimodality Imaging with Pathologic Correlations

CT differentiation of gastric ectopic pancreas from gastric stromal tumors

Heterotopic Pancreatic Pseudocyst Radiologically Mimicking Gastrointestinal Stromal Tumor

Contact Info

Product

Resources

About