title: Concurrent medullary and papillary carcinoma of thyroid.
abstract: Simultaneous occurrence of papillary thyroid carcinoma (PTC) and medullary thyroid carcinoma (MTC) in the same thyroid gland is a rare condition. These tumors derive from different cells; PTC originates from follicular cells whereas MTC originates from parafollicular cells. Because of this, the treatment of these tumors also differs. This article describes two rare cases of the simultaneous occurrence of MTC and PTC in the thyroid gland.
authors.affiliation: Department of Otolaryngology, Medical Faculty of Maltepe University, 34845 Maltepe, İstanbul, Turkey. dratespare@gmail.com.
authors.forename: Altay
authors.initials: A
authors.lastname: Ateşpare
authors.forename: Aslı Batur
authors.initials: AB
authors.lastname: Çalış
authors.forename: Öner
authors.initials: Ö
authors.lastname: Çelik
authors.forename: Neşe
authors.initials: N
authors.lastname: Yener
authors.forename: Çetin
authors.initials: Ç
authors.lastname: Vural
mesh_terms: D044963:Biopsy, Fine-Needle; D002277:Carcinoma / Q000175:diagnosis* / Q000601:surgery; D018278:Carcinoma, Neuroendocrine / Q000175:diagnosis* / Q000601:surgery; D002291:Carcinoma, Papillary; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D000077273:Thyroid Cancer, Papillary; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000601:surgery; D013965:Thyroidectomy; D014057:Tomography, X-Ray Computed