title: Encapsulated columnar-cell carcinoma of the thyroid: a case report.
abstract: Columnar-cell carcinoma is a rare form of papillary thyroid carcinoma. It is a biologically aggressive variant, according to the World Health Organization classification, due to its rapid growth, high local recurrence rate, and frequent lung, brain, and bone metastases. However, recent reports indicate encapsulated tumors confined to the thyroid gland are associated with a more favorable prognosis. We report a case of encapsulated columnar-cell carcinoma occurring in the right lobe of the thyroid in a 25-year-old female and discuss the histopathologic features, differential diagnosis, and prognostic factors.
authors.affiliation: Department of Pathology, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan.
authors.forename: Wan-Ting
authors.initials: WT
authors.lastname: Huang
authors.forename: Sheau-Fang
authors.initials: SF
authors.lastname: Yang
authors.forename: Sheng-Lan
authors.initials: SL
authors.lastname: Wang
authors.forename: Hon-Man
authors.initials: HM
authors.lastname: Chan
authors.forename: Chee-Yin
authors.initials: CY
authors.lastname: Chai
mesh_terms: D000328:Adult; D002272:Carcinoembryonic Antigen / Q000032:analysis; D002291:Carcinoma, Papillary / Q000378:metabolism / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D011379:Prognosis; D013964:Thyroid Neoplasms / Q000378:metabolism / Q000473:pathology*
chemical_list: D002272:Carcinoembryonic Antigen