This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Weight gain Is seen In all except- 
Select and explain. 
A. Cushings syndrome, B. Hypothyroidism, C. Pheochromocytoma, D. Insulinoma
C: Pheochromocytoma
Answer: C: Pheochromocytoma 
Explanation: In pheochromocytoma, the child has a good appetite but because of the hypermetabolic state does not gain weight, and severe cachexia may develop. Page 1942, Nelson textbook of pediatrics 19th edition