Thyroid gland undifferentiated (anaplastic) carcinoma

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.

Also known as anaplastic carcinoma of the thyroid, anaplastic carcinoma of the thyroid gland, anaplastic carcinoma of thyroid, anaplastic carcinoma of thyroid gland, anaplastic thyroid cancer, anaplastic thyroid carcinoma, anaplastic thyroid gland carcinoma, Dedifferentiated thyroid gland carcinoma, metaplastic thyroid gland carcinoma, pleomorphic thyroid gland carcinoma, sarcomatoid thyroid gland carcinoma, thyroid gland carcinosarcoma, thyroid gland undifferentiated (anaplastic) carcinoma, thyroid gland undifferentiated carcinoma, undifferentiated (anaplastic) thyroid gland cancer, undifferentiated (anaplastic) thyroid gland carcinoma, undifferentiated carcinoma of the thyroid, undifferentiated carcinoma of the thyroid gland, undifferentiated carcinoma of thyroid, undifferentiated carcinoma of thyroid gland, undifferentiated thyroid carcinoma, undifferentiated thyroid gland carcinoma, undifferentiated thyroid tumor, undifferentiated thyroid tumour — per MONDO

Also identified as

• DOID 0080522 per MONDO
• MESH D065646 per MONDO
• NCIT C3878 per MONDO
• Orphanet 142 per MONDO
• SCTID 255031003 per MONDO
• UMLS C0238461 per MONDO

Affected Organs