What is Ductal Carcinoma In Situ (DCIS) and Lobular Carcinoma In Situ (LCIS)?

Rodrigo Arrangoiz MS, MD, FACS, FSSO
  • Ductal carcinoma in situ (DCIS):
    • Is a noninvasive carcinoma of the breast
    • It is defined as the proliferation of malignant epithelial cells:
      • Confined to the mammary ducts and without evidence of invasion through the basement membrane
    • Because it is noninvasive:
      • DCIS does not pose a risk of metastasis
  • Lobular carcinoma in situ (LCIS):
    • Was previously considered a form of noninvasive carcinoma:
      • But is now understood to be a benign entity that is a pathologic marker of increased breast cancer risk:
        • In either breast
    • Atypical lobular hyperplasia (ALH) and LCIS:
      • Are both forms of lobular neoplasia and, together with atypical ductal hyperplasia (ADH):
        • Represent proliferative nonmalignant breast lesions
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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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