Which one of the following is not a CT feature of Adrenal adenoma?
Correct Answer: Enhances rapidly, contrast stays in it for relatively longer time and washes out late
Description: Enhances rapidly, contrast stays in it for relatively longer time and washes out late Adrenal adenomas show rapid contrast enhancement and rapid subsequent washout; whereas nonadenomas (adrenal ca, mets and pheochromocytomas) show slower washout. Characterstics of adenomas (which help differentiate it from nonadenomas) Homogenous well defined rounded tumor; usually smaller than 4 cm Low attenuation on CT Signal loss on MR chemical shift imaging Contrast enhancement pattern (adenomas show rapid enhancement and rapid washout whereas nonadenomas show delayed washout) Findings s/o malignancy in an incidentally discovered adrenal mass (Harrison 17/e p2258) - large size >4 cm - tumor inhomogenesity and irregular margins - calcifications - high attenuation of CT - no loss of signal on Chemical shift MR
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