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Thyroid gland
Benign neoplasms
Paraganglioma

Reviewer: Shahidul Islam, M.D., Ph.D. (see Reviewers page)
Revised: 3 April 2013, last major update March 2009
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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Case reports
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Gross description
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Micro description
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Micro images
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Distinct nesting (Zellballen) pattern with relatively uniform tumor cells containing moderate abundant granular cytoplasm (left image from AFIP)
Sustentacular cells at periphery of nests are S100+
NSE staining
Cytology Description
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Positive stains
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Negative stains
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Electron microscopy images
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Cytoplasmic neurosecretory granules
Differential diagnosis
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End of Thyroid gland > Benign neoplasms > Paraganglioma


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