Weight loss
Flank pain
Pallor
Duration may vary from seconds to hours
Over time, spells tend to occur more frequently and become more severe as the tumor grows
Hypertension: Paroxysmal in 50% of cases
Palpitations
Nausea
Frequency may vary from monthly to several times per day
Weakness
Constipation
Fever
Postural hypotension: From volume contraction
Tachyarrhythmias
Epigastric pain
Headaches
Hypertensive retinopathy
Diaphoresis
Severe hypertension
Neurofibromas
Tremor
Pulmonary edema
Anxiety, sense of doom
