This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': "Which of the following production is noted in Cushing's Syndrome \nSelect and explain. \nA. Decrease production of cortisol, B. Increase production of cortisol, C. Excessive production of epinephrine, D. Excessive production of vasopressin", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cushing syndrome\n\nCushing syndrome is characterized by an excess production of cortisol.\nThe most common cause of Cushing syndrome is exogenous hypercortisolism, i.e., administration of exogenous glucocorticoids.\nThe cause of endogenous hypercortisolism (endogenous Cushing syndrome) are : -\n\ni)\xa0\xa0\xa0\xa0ACTH producing pituitary microadenoma\xa0→\nIt is the most common cause of endogenous hypercortisolism and this form of Cushing syndrome is referred to as Cushing disease.\nii)\xa0Hypersecretion of cortisol by an adrenal adenoma, carcinoma or nodular hyperplasia.\niii) The secretion of ectopic ACTH by a nonendocrine neoplasm, e.g., small cell carcinoma of the lung.', 'role': 'assistant'}]