title: Pathology and cytologic features of thyroid neoplasms.
abstract: Most thyroid neoplasms arise from follicular cells and are well differentiated. Anaplastic and poorly differentiated carcinomas are rare and have a high mortality. Five percent of tumors are of C-cell origin, and 20% to 25% of these are hereditary. Thyroid lymphoma is rare and occurs in the setting of Hashimoto's thyroiditis. Fine needle aspiration biopsy is the best diagnostic tool to classify thyroid neoplasms.
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, University of Michigan, 1904 Taubman Health Center, 1500 E. Medical Center Drive, Ann Arbor, MI 48109-0312, USA.
authors.forename: Kelly M
authors.initials: KM
authors.lastname: Malloy
authors.forename: Mary F
authors.initials: MF
authors.lastname: Cunnane
mesh_terms: D044963:Biopsy, Fine-Needle; D002291:Carcinoma, Papillary / Q000473:pathology; D006801:Humans; D008223:Lymphoma / Q000473:pathology; D008224:Lymphoma, Follicular / Q000473:pathology; D013961:Thyroid Gland / Q000166:cytology* / Q000473:pathology; D013964:Thyroid Neoplasms / Q000473:pathology*