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