Spontaneous Transition of an Autonomously Functioning Thyroid Adenoma to Graves’ DiseaseBommireddipalli, Srinivas, MD; Gadiraju, Ramesh, MD; DePuey, Gordon E., MDClinical Nuclear Medicine: December 2009 - Volume 34 - Issue 12 - p 845-847 doi: 10.1097/RLU.0b013e3181becf3f Original Article Buy Abstract Author InformationAuthors Article MetricsMetrics We report a case of a 57-year-old postmenopausal woman with an autonomously functioning thyroid adenoma spontaneously developing Graves’ disease (GD) as documented by I-123 scintigraphy. To date, anecdotal case reports citing the progression of an autonomous nodule to GD have documented either a major thyroidal insult, spontaneous or therapeutic, or the activation of thyroid tissue by circulating thyroid stimulating IgG, with variable progression characteristics. In contradiction to the proposed inciting factors, our patient underwent a minimally invasive fine needle aspiration biopsy followed by suppressive pharmacotherapy. Her antithyroid antibody assay detected low titers of thyroperoxidase antibody (<10 U/mL). We conclude that this is a rare case of autonomously functioning adenoma where neither significant thyroid tissue damage nor the presence of thyroid stimulating IgG can be implicated as an inciting trigger in its progression to GD. From the Division of Nuclear Medicine, St Luke's Roosevelt Hospital Center, New York, NY. Received for publication March 11, 2009; accepted June 24, 2009. Reprints: Srinivas Bommireddipalli, MD, Division of Nuclear Medicine, S & R 5, St Luke's Hospital, 1111 Amsterdam Ave, New York, NY, 10025. E-mail: email@example.com; firstname.lastname@example.org. © 2009 Lippincott Williams & Wilkins, Inc.