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Gallbladder

Malignant gallbladder tumors

Ewings / PNET


Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 15 February 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

Case reports
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● Initial case report in 53 year old woman (Arch Pathol Lab Med 2004;128:571)

Micro description
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● Monotonous small round cells with Homer-Wright rosettes

Micro images
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Various images

Positive stains
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● CD99/MIC2, NSE, synaptophysin

Negative stains
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● CD45/LCA, desmin, S100

End of Gallbladder > Malignant gallbladder tumors > Ewings / PNET


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