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
Which of the following parotid gland tumor shows hot spot on tc99 peechnate scan?
assistant
The correct answer is  Ans. is 'a' ie adenolymphoma (a) scan the salivary glands, especially the parotids; and (b) assess salivary gland function. All salivary tumours produce a `cold' spot on 99mTc (technetium) scan except adenolymphoma (Wahin's tumour) and Oncocytoma. They take up more isotope than the rest of the gland to give a 'hot' spot on scan, so that a definite pre-operative diagnosis can be made without biopsy