Fine-needle aspiration of anaplastic thyroid carcinoma with varied cytologic and histologic patterns: a case report.
Anaplastic carcinoma of the thyroid (ACT) is a rare subtype of thyroid neoplasm. This tumor represents approximately 5-10% of all thyroid malignancies and its poor prognosis has not changed in 25 years. ACT often arises in a long-standing thyroid nodule and has been documented to be associated with a variety of more well-differentiated thyroid carcinomas. We describe the cytologic features of a case in which the patient had a 10-yr history of a thyroid nodule. The ACT in this case had a cytologic and histologic appearance of several different subtypes of thyroid carcinomas.
Brooke
P K
PK
Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021.
Hameed
M
M
Zakowski
M F
MF
D000368:Aged; D001707:Biopsy, Needle / Q000379:methods; D002277:Carcinoma / Q000473:pathology*; D005260:Female; D006801:Humans; D013964:Thyroid Neoplasms / Q000473:pathology*