title: Papillary thyroid carcinoma and laryngeal squamous cell carcinoma manifesting as a collision tumor of the neck: A case report.
abstract: A 55-year-old male presented with a rapidly expanding mass on the right side of the neck and progressive hoarseness. An electronic laryngoscopy and a computed tomography scan were performed, and the patient was subsequently diagnosed with tumors of the larynx and the thyroid gland. An en bloc near-total thyroidectomy combined with a total laryngectomy was performed. The final pathological analysis revealed a collision tumor that was derived from a laryngeal squamous cell carcinoma and a papillary thyroid carcinoma. Collision tumors of the head and neck are rare. The therapy for a collision tumor should consist of a combination of the treatments that are normally used for each focus.
authors.affiliation: Department of Otolaryngology Head-Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Xiang-Yan
authors.initials: XY
authors.lastname: Cui
authors.forename: Ning
authors.initials: N
authors.lastname: Fang
authors.forename: Wei-Lun
authors.initials: WL
authors.lastname: Chen
authors.forename: Hong
authors.initials: H
authors.lastname: Yu
authors.forename: Wei
authors.initials: W
authors.lastname: Zhu
keywords: collision tumor; laryngeal squamous cell carcinoma; papillary thyroid carcinoma