Rodrigo Arrangoiz MS, MD, FACS, FSSO
  • The presence of goiter was originally determined from autopsy studies that weighed the thyroid gland, but this was superseded by the use of ultrasound by which a goiter is diagnosed if:
    • The size of the thyroid gland is greater than three standard deviations of the median:
      • Volume 18 ml for women and 25 ml for men
  • Goiter is more common in iodine-deficient regions of the world:
    • Where endemic goitre affects 10% of the population
  • In Framingham:
    • Clinically apparent nodules (palpation) were present in:
      • 6.4% of women and 1.5% of men:
        • The presence of single thyroid nodules was 3%, and multinodular goiter was 1%
  • In an autopsy study in 1955:
    • 50% of people had thyroid nodules and the majority were multiple
  • Like autopsy, imaging frequently reveals subclinical thyroid nodules and, when ultrasound is used in epidemiological studies:
    • The estimate of goiter prevalence is 19% to 67%
  • Incidental thyroid nodules are seen in up to:
    • 25% of contrast-enhanced chest CT scans
    • 16% to 18% of CT and MR scans of the neck
    • 1% to 2% PET scans
  • In patients under 40 years:
    • The goiter is typically a solitary nodule,
  • Whereas diffuse goitrer is more common over the age of 65 years
  • The female to male ratio is:
    • 4:1

Published by Rodrigo Arrangoiz MS, MD, FACS, FSSO

My name is Rodrigo Arrangoiz I am a breast surgeon/ thyroid surgeon / parathyroid surgeon / head and neck surgeon / surgical oncologist that works at Center for Advanced Surgical Oncology in Miami, Florida. I was trained as a surgeon at Michigan State University from (2005 to 2010) where I was a chief resident in 2010. My surgical oncology and head and neck training was performed at the Fox Chase Cancer Center in Philadelphia from 2010 to 2012. At the same time I underwent a masters in science (Clinical research for health professionals) at the University of Drexel. Through the International Federation of Head and Neck Societies / Memorial Sloan Kettering Cancer Center I performed a two year head and neck surgery and oncology / endocrine fellowship that ended in 2016. Mi nombre es Rodrigo Arrangoiz, soy cirujano oncólogo / cirujano de tumores de cabeza y cuello / cirujano endocrino que trabaja Center for Advanced Surgical Oncology en Miami, Florida. Fui entrenado como cirujano en Michigan State University (2005 a 2010 ) donde fui jefe de residentes en 2010. Mi formación en oncología quirúrgica y e n tumores de cabeza y cuello se realizó en el Fox Chase Cancer Center en Filadelfia de 2010 a 2012. Al mismo tiempo, me sometí a una maestría en ciencias (investigación clínica para profesionales de la salud) en la Universidad de Drexel. A través de la Federación Internacional de Sociedades de Cabeza y Cuello / Memorial Sloan Kettering Cancer Center realicé una sub especialidad en cirugía de cabeza y cuello / cirugia endocrina de dos años que terminó en 2016.

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