Which statement is false about pheochromocytomas?

• A. clinically they may present with attacks of pallor, palpitations, sweating, headache and anxiety
• B. clinicaaly they present with hypertension alone, or sometime abdominal pain and vomiting
• C. investigations include urinary VMA and catecholamines
• D. beta blockade is the temporary treatment of choice and possibly long term
• E. the treatment of choice is surgical resection