Synonyms
Contour wall alteration; Notches; Wall displacement
Definition
Extrinsic compression of the stomach and duodenum is a morphologic alteration of the gastric and duodenal contour related to a neighboring space‐occupying lesion.
Pathology/Histopathology
Pathology depends on the cause of the compression. The most frequent etiologic factors in gastric compression are liver and spleen enlargement, pancreatic pathology (tumors, cysts, and pancreatitis), gallbladder alterations, retroperitoneal lymphadenopathies, renal masses, and collections in the lesser sac.
In duodenal compression, the main causes include hepatomegaly, gallbladder enlargement, coledocal compressions, right renal and adrenal masses, periportal adenopathies, and hepatic angle and transverse colon alterations ( 1).
According to the histological characteristics, compressions can be classified as congenital (duplication cysts of the stomach or duodenum), inflammatory (acute and chronic pancreatitis, Morrison pouch...
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Bibliography
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© 2008 Springer-Verlag Berlin Heidelberg New York
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Mendoza, L.H.R., Alonso, C.G., Subirán, M.E.G. (2008). Compression, Extrinsic, Stomach and Duodenum. In: Baert, A.L. (eds) Encyclopedia of Diagnostic Imaging. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-35280-8_548
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DOI: https://doi.org/10.1007/978-3-540-35280-8_548
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-35278-5
Online ISBN: 978-3-540-35280-8
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