title: Colon cancer metastasis to the thyroid gland.
abstract: Thyroid metastasis originating from colon cancer is an uncommon clinical entity. We present a case of a 40-year-old Saudi male patient that was known to have metastatic adenocarcinoma of the colon, and who presented initially with hoarseness of voice. A left thyroid lesion was found and fine-needle aspiration biopsy showed that it was a colon cancer metastasis. His condition later deteriorated with development of stridor. Tracheostomy was performed and the diagnosis was confirmed by biopsy. A high index of suspicion is required to consider colorectal carcinoma metastatic to the thyroid.
authors.affiliation: Department of Otolaryngology-Head & Neck Surgery, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia. E-mail. herabi@hotmail.com.
authors.forename: Ameen Z
authors.initials: AZ
authors.lastname: Alherabi
authors.forename: Osama A
authors.initials: OA
authors.lastname: Marglani
authors.forename: Malak J
authors.initials: MJ
authors.lastname: Gazzaz
authors.forename: Mohammed M
authors.initials: MM
authors.lastname: Abbas
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D003110:Colonic Neoplasms / Q000188:drug therapy / Q000473:pathology*; D006801:Humans; D008297:Male; D013964:Thyroid Neoplasms / Q000556:secondary*