A 34-year-old man complains of sudden attacks of dizziness, blurred vision, and excruciating headaches of 4 months in duration. During one of these attacks, his blood pressure was 180/120 mm Hg. The patient’s father had been treated for thyroid cancer about 15 years ago. Laboratory studies show normal serum levels of aldosterone, renin, and angiotensin. A 24-hour urinalysis reveals increased metanephrines. Episodic hypeension in this patient is most likely caused by a tumor in which of the following endocrine organs?
Correct Answer: Adrenal
Description: - Given clinical features suggests the diagnosis of Pheochromocytoma - Pheochromocytoma Arising from chromaffin cells of adrenal medulla that secretes catecholamines. Can originate in extra-adrenal sites - Paragangliomas. Clinical features are caused d/t release of catecholamines. - The other choices do not include tumors that lead to episodic hypeension.
Category:
Pathology
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