Epithelial tumors

Merkel cell carcinoma

Last author update: 1 February 2014
Last staff update: 26 May 2022

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PubMed Search: Merkel cell carcinoma eyelid

Nat Pernick, M.D.
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Cite this page: Pernick N. Merkel cell carcinoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyeeyelidmerkel.html. Accessed June 16th, 2024.
Definition / general
  • Resembles skin tumor
  • Usually upper eyelid
  • Often presents as large, nontender, red or violet mass
Clinical images

AFIP images
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Superficial tumor of upper eyelid

Microscopic (histologic) description

AFIP images
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Well circumscribed nodule

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Pale round nuclei with high N/C ratio

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Infiltrating lymphocytes present

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