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
A 45-year-old female presents with symptoms of thyrotoxicosis. The RAIU scan shows increased uptake. Which of the following is the most likely diagnosis?
assistant
The correct answer is  Ans. D. ChoriocarcinomaChoriocarcinoma produces beta hCG which acts on TSH receptor to stimulate uptake of Iodine.Hence RAIU would show increased uptake.Option A.Hashimoto's thyroiditisAny inflammation of thyroid will lead to reduced Uptake of Iodine.Option B & C.Struma ovari and thyrotoxicosis factitia lead to reduced TSH leading to reduced uptake of iodine.