Abstract
We report on a case of metastatic Merkel cell carcinoma in a 74-year-old patient with positive staining for thyroid transcription factor-1. This represents a new immunohistochemical staining pattern for Merkel cell carcinoma and has implications regarding the accurate diagnosis of this tumor type.
MeSH terms
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Aged
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Biomarkers, Tumor / metabolism
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Biopsy
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Carcinoma, Merkel Cell / metabolism*
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Carcinoma, Merkel Cell / pathology*
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Female
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Humans
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Immunohistochemistry
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Nuclear Proteins / metabolism*
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Skin Neoplasms / metabolism*
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Skin Neoplasms / pathology*
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Thyroid Nuclear Factor 1
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Transcription Factors / metabolism*
Substances
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Biomarkers, Tumor
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NKX2-1 protein, human
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Nuclear Proteins
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Thyroid Nuclear Factor 1
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Transcription Factors