Snapshot A 22-year-old woman presents to her primary care physician after finding a "lump" on her neck. She denies any fever, flu-like symptoms, or sick contacts. She also denies any pain or discomfort in the neck; however, she notes an unintentional 8-pound weight loss. She does not have any significant medical history. Family history is significant for medullary thyroid cancer in her mother and parathyroid hyperplasia in her maternal grandmother. Physical exam is significant for a fixed hard mass in the right-side of the thyroid. A thyroid stimulating hormone level is decreased and thyroid scintigraphy is scheduled to be performed. Introduction Epidemiology Malignant risk factors login to view 14 more bullets Benign risk factors login to view 5 more bullets Approach to Thyroid Nodules Discovery of a thyroid nodule login to view 33 more bullets FNA findings and management login to view 8 more bullets