Lymph nodes - not lymphoma
Inclusions, pigment, ectopic cells or tissue

Topic Completed: 1 July 2013

Revised: 1 February 2019, last major update July 2013

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Megakaryocytes [title] lymph nodes

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Cite this page: DePond W. Megakaryocytes. website. Accessed March 28th, 2020.
Definition / general
  • Often associated with extramedullary hematopoiesis when present in lymph nodes
Case reports
Microscopic (histologic) images

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Various images

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Megakaryocytes in bone marrow

Positive stains
Negative stains
Differential diagnosis
  • Multinucleated histiocytes: larger, more cytoplasm, vesicular nuclei that are not multilobated, CD68+
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