Which of the following parotid gland tumor shows a hot spot on tc99 peechnate scan?
Correct Answer: adenolymphoma
Description: 99mTc (peechnetate ion) is distributed like Cl- and is concentrated in the salivary glands and then secreted in the saliva. Therefore sodium peechnetate (Na99mTcO4) is used to; (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 the scan, so that a definite pre-operative diagnosis can be made without biopsy
Category:
Surgery
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now