الفهرس 
HISTORICAL REVIEWOnly 14 pages are availabe for public view
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Abstract
Clinical assessment of a patient with a focal or diffuse thyroid tumor is the first step in diagnostic evaluation. The diagnostic imaging process augments information obtained by inspecting eye and the palpating hand. It allows the qualification and quantification of thyroid tumor mass. This diagnostic input allows establishment of a more reliastic provisional diagnosis and directs a rational treatment approach to the patient.Inspite of radionucleide imaging remains the primary radiologic imaging procedure for evaluating functioning thyroid tissue, high resoln. real-time sonography has provided additional information in the evaluation of patient with thyroid disease especially in differentiating cystic from solid thyroid nodules.Also CT. scanning in thyroid disease provided additional anatomic information not available on radionucleide imaging by defining the extent of retrotracheal and substernal extension in relation to normal anatomic structures and the presence of metastatic lymphaadenopathy in the neck.