Primary Intrathoracic Goiter on ScintigraphyInfante, Jose R., PhD*; Serrano, Justo, PhD*; Rayo, Juan I., PhD*; Dominguez, Luz, PhD*; Gomez-Tejada, Ramon, PhD†; Pimentel, Juan J., MD†; Sánchez, Roman, PhD*Clinical Nuclear Medicine: July 2005 - Volume 30 - Issue 7 - p 523-524 doi: 10.1097/01.rlu.0000167693.38144.36 Interesting Image Buy Abstract Author InformationAuthors Article MetricsMetrics A 69-year-old woman with a history of goiter and thyrotoxicosis over the previous year was seen for radioiodine therapy. At the time of a previous ablation with I-131, a thyroid scan was performed after administration of Tc-99m sodium pertechnetate. Scintigraphy showed an enlarged thyroid gland with increased thyroid uptake in the neck at its normal location along with mediastinal uptake. Contrast enhanced computed tomography (CT) showed an anterior mediastinal mass. This mass was excised. Histologic study demonstrated an ectopic primary intrathoracic nodular goiter at the site of increased activity seen on Tc-99m pertechnetate imaging. From the Departments of *Nuclear Medicine and †Pathology, Infanta Cristina Hospital, Badajoz, Spain. Received for publication May 3, 2004; revision accepted August 8, 2004. Reprints: Jose R. Infante, PhD, Servicio de Medicina Nuclear, Hospital U. “Infanta Cristina,” Ctra. de Portugal s/n, 06080-Badajoz, Spain. E-mail: email@example.com. © 2005 Lippincott Williams & Wilkins, Inc.