Other tumors

Merkel cell carcinoma

Topic Completed: 1 February 2014

Minor changes: 24 December 2020

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PubMed Search: Merkel cell carcinoma [title] eyelid [title]

Nat Pernick, M.D.
Page views in 2020: 291
Page views in 2021 to date: 823
Cite this page: Pernick N. Merkel cell carcinoma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/eyeeyelidmerkel.html. Accessed December 4th, 2021.
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 with thin epidermis
and prominent vessels

Microscopic (histologic) description

AFIP images
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Well circumscribed nodule of superficial dermis

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Pale round nuclei with high N/C ratio

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Infiltrating lymphocytes present

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