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Anaplastic thyroid cancer

Definition: A primary carcinoma of the thyroid gland composed of undifferentiated cells. The malignant cells demonstrate evidence of epithelial differentiation, either by immunohistochemistry or electron microscopic studies. Microscopically, in the majority of cases there is a mixture of spindle, epithelioid, and giant cells. The vast majority of the patients present with a rapidly enlarging neck mass. The clinical course is usually aggressive.

Synonyms (terms occurring on more labels are shown first): anaplastic thyroid cancer

More information: PubMed search and possibly Wikipedia

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Drugs with this side effect as MedDRA Preferred Term

  • ropinirole
    • Anaplastic thyroid cancer: infrequent