title: Unusual complications of thyroid carcinoma.
abstract: Thyroid carcinomas are the most frequent endocrine malignancies. Complications may arise from an established malignancy and these may lead to the initial clinical presentation or cause subsequent problems. In this case report two elderly patients with differentiated and undifferentiated thyroid carcinomas who suffered unusual medical complications are described. The incidence and treatment of thyroid carcinoma is discussed and the importance of fine needle aspiration of thyroid nodules and the recognition of iodine containing radiographic contrast media in the causation of iodine induced thyrotoxicosis is highlighted.
authors.affiliation: Department of Medicine, University Hospital of Wales, Cardiff, UK. Lazarus@cf.ac.uk
authors.forename: P J D
authors.initials: PJ
authors.lastname: Owen
authors.forename: J H
authors.initials: JH
authors.lastname: Lazarus
authors.forename: R E
authors.initials: RE
authors.lastname: Morse
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media / Q000009:adverse effects; D017809:Fatal Outcome; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007455:Iodine / Q000009:adverse effects; D008297:Male; D013575:Syncope / Q000209:etiology*; D013964:Thyroid Neoplasms / Q000150:complications* / Q000175:diagnosis; D013971:Thyrotoxicosis / Q000139:chemically induced
chemical_list: D003287:Contrast Media; D007455:Iodine