title: Malignant thyroid teratoma: report of an aggressive tumor in a 64-year-old man.
abstract: Malignant teratoma of the thyroid is a rare and aggressive tumor, frequent in children than in adults. Histologically, thyroid teratomas usually show a predominance of a neuroectodermal component. Mature cartilage and bone may be present. We present the case of primary malignant teratoma of the thyroid in a 64-year-old man. Histologically, the tumor displayed a predominant neuroectodermal component. The diagnosis was confirmed by immunohistochemistry. The patient underwent a radical thyroidectomy with central neck dissection as primary treatment and radioiodine treatment afterwards. The patient had local and distant recurrence. A second surgery was performed with poor results and the patient died 3 months afterwards.
authors.affiliation: Endocrine, Bariatric and metabolic Unit, Center of Excellence, General Surgery Department, Universitary Hospital Vall d'Hebron, Passeig de la Vall d'Hebron, 119-129, 08035, Barcelona, Spain. vilallongapuy@hotmail.com
authors.forename: R
authors.initials: R
authors.lastname: Vilallonga
authors.forename: C
authors.initials: C
authors.lastname: Zafon
authors.forename: C
authors.initials: C
authors.lastname: Ruiz-Marcellan
authors.forename: G
authors.initials: G
authors.lastname: Obiols
authors.forename: J M
authors.initials: JM
authors.lastname: Fort
authors.forename: J A
authors.initials: JA
authors.lastname: Baena
authors.forename: B
authors.initials: B
authors.lastname: Villanueva
authors.forename: A
authors.initials: A
authors.lastname: Garcia
authors.forename: M
authors.initials: M
authors.lastname: Sobrinho-Simões
mesh_terms: D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D013724:Teratoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D013964:Thyroid Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy