system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
False about isotope scanning
assistant
The correct answer is  Radiolabelled iodine (123I) is used majority (80%) of 'cold' swellings are benign and some (5%) functioning or 'warm' swellings will be malignant. Principal value is in the toxic patient with a nodule or nodularity of the thyroid.Ref: Bailey and love 27e, page no: 804