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Updated: Jul 14, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
Published on: December 2, 2022
Merkel cell carcinoma masquerading as a chalazion
Nigel G Rawlings1, Seymour Brownstein, David R Jordan
1Department of Ophthalmology, University of Ottawa Eye Institute, Ottawa Hospital, Ontario, Canada.
Case Report:
A 62-year-old woman presented with a large rapidly growing violaceous mass initially diagnosed as a chalazion. Histopathologic examination disclosed Merkel cell carcinoma (MCC). Radiotherapy was not tolerated. Despite chemotherapy, she succumbed to widespread metastases 13 months later.
Comments:
MCC must be included in the differential diagnosis of solitary eyelid nodules, requiring early and aggressive treatment.
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