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4 terms

Metastasis

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Definition
Focal GB wall thickening due to localized metastatic deposit. From stomach, pancreas, bile ducts by direct invasion. From lungs, kidneys, esophagus, and malignant melanoma through blood. Similar look as primary CA, except that we do not usually see an associated stone.
Incidence
Mets to the GB is rare.
Clinical presentation
None (unless their primary is causing symptoms). Sonographic Appearance:
Sonographic appearance
Focal thickening of the GB wall. Non shadowing intraluminal mass with indistinct walls. Cholelithiasis usually absent.