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CK7 negative anaplastic thyroid carcinoma presenting as cutaneous metastases to the scalp
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https://doi.org/10.5070/D32411042006Abstract
Anaplastic thyroid carcinoma (ATC) is an extremely rare but aggressive form of thyroid cancer. Although local tissue invasion is characteristic of this disease, systemic metastases are a common clinical finding. Our case discusses an unusual presentation of cutaneous metastases to the scalp in a patient with a remote history of ATC. It also highlights the utility of immunohistochemical staining in determining the origin of a tumor when the source of primary malignancy is not readily identifiable.