title: Colonic adenocarcinoma metastatic to the thyroid: report of a case.
abstract: We report herein the case of a 67-year-old man who was admitted to our hospital with a 3-month history of hoarseness, a cervical mass, and weak muscles of the extremities 6 years after undergoing a right colectomy for carcinoma. Physical and imaging examinations disclosed a nodule in the thyroid with swollen cervical lymph nodes, multiple pulmonary lesions with pleural effusion, and a cerebral mass. Fine-needle aspiration cytology of the thyroid nodule and brush cytology of the lung mass revealed adenocarcinoma, which was consistent with a diagnosis of metastases from the primary colon adenocarcinoma to the thyroid, brain, and lung. The patient eventually died from the malignancy, although he survived for 4 months after the disclosure of the metastases. The rarity, diagnosis, and prognosis of thyroid metastasis from colon carcinoma are discussed.
authors: First Department of Surgery, Nippon Medical School, Tokyo, Japan.
authors: Koho
authors: K
authors: Akimaru
authors: Masahiko
authors: M
authors: Onda
authors: Takashi
authors: T
authors: Tajiri
authors: Kimiyoshi
authors: K
authors: Shimanuki
authors: Hiroshi
authors: H
authors: Iwama
authors: Keiko
authors: K
authors: Furukawa
authors: Yoshihiko
authors: Y
authors: Sugiyama
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary*; D000368:Aged; D001932:Brain Neoplasms / Q000556:secondary; D003110:Colonic Neoplasms / Q000473:pathology*; D017809:Fatal Outcome; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D013964:Thyroid Neoplasms / Q000556:secondary*