RT Journal Article SR Electronic T1 Hyperthyroidism In Adults: Variable Clinical Presentations And Approaches To Diagnosis JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 109 OP 113 DO 10.3122/jabfm.8.2.109 VO 8 IS 2 A1 Paul B. Knudson YR 1995 UL http://www.jabfm.org/content/8/2/109.abstract AB Background: Hyperthyroidism is a disease that has various symptoms and can present in many ways. In the elderly patient hyperthyroidism often is not expressed in the classical manner. A case report of a middle-aged man who had hyperthyroidism with only one symptom is detailed. Methods: A literature review utilizing MEDLINE files from 1988 to the present, as well as current textbooks of medicine and endocrinology, was used to prepare this report. Keywords for the search were “hyperthyroidism,” “symptoms,” “unintentional weight loss,” and “differential diagnosis.” Results and Conclusions: The clinical presentation of hyperthyroidism can vary from almost asymptomatic to apathetic in appearance to a marked hyperdynamic physiologic response. Family physicians must be well informed of this variation in disease expression. Overlooking the diagnosis of this relatively easily treated condition can be detrimental to patient care and expensive.