Which one of the following clinical features are NOT seen in pheochromocytoma?: (A) Hypertension, (B) Episodic palpitations, (C) Weight loss, (D) Diarrhea
Answer is D. In pheochromocytoma, there are paroxysms of hypertension and finally, give way to continuous hypertensive state. 
During attacks, the patient complains of a headache, palpitations, abdominal pain, and dizziness; pallor, vomiting, and sweating also occur. 
The child has a good appetite but because the hypermetabolic state does not gain weight, and severe cachexia may develop.