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Lymph nodes - not lymphoma
Inflammatory disorders (non-infectious)
Kikuchi disease

Reviewer: William D. DePond, M.D.(see Reviewers page)
Revised: 28 July 2013, last major update June 2006
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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Case reports
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Micro description
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Skin biopsies -

Micro images
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Kikuchi lymphadenitis - contributed by Dr. Mark R. Wick

Kikuchi's necrotizing lymphadenitis


Various images


Case of the Week #89


Lymph node with necrosis and lymphohistiocytic infiltrate

Necrotic foci in lymph node

Well preserved cells, pyknotic cells and histiocytes at edge of necrosis

Mixed inflammatory infiltrate includes histiocytes with necrotic debris


Histiocytes with ingested nuclear debris

With SLE #1

#2

Resembling signet ring carcinoma of stomach (inset CD68+ histiocytes)

Reticulin stain shows preserved vessel outlines


Cytology description
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Molecular description
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Electron microscopy description
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Electron microscopy images
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Histiocytes with myelin figures (HC), lymphocytes (L) and plasmacytoid cells (P) and transformed lymphocytes #1 (TL)

#2 with tubuloreticular structures (TRS)-inset)

Differential diagnosis
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Additional references
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End of Lymph nodes - not lymphoma > Inflammatory disorders (non-infectious) > Kikuchi disease


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