Pheochromocytoma

       
        Neural crest-derived chromaffin cells that secrete norepinephrine and epinephrine.

       Clinical findings:

• headache
• diaphoresis
• palpitation
• severe hypertension
• tremor
• nausea
• weakness
• anxiety
• epigastic pain
• constipation
• weight loss
• fever
• pallor
• neurofibromas
• Café au lait spots.

        Laboratory findings:

• hyperglycemia
• hypercalcemia
• erythrocytosis