This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
A patient presented with headache and episodes of hypertension. In between the episodes he was found to be normal. His urinary VMA levels were found to be raised. The diagnosis is 
Select and explain. 
A. Carcinoid syndrome, B. Pheochromocytoma, C. Small cell carcinoma, D. Addison's disease
B: Pheochromocytoma
Answer: B: Pheochromocytoma 
Explanation: (B) Pheochromocytoma # Clinical features of Phaeochromocytoma: MC symptoms, in order of frequency, are: Headache palpitation, sweating (seen in >50%), vomiting, weakness & pallor (20-40% of patients) i.e. symptoms of adrenal overdosage. Dyspnoea. weight loss, flushing (<20% patients) Paroxysmal attack may vary from a few minutes to some hours. BP may be very high & hypercalcaemia present