the 3 criteria believed important for a maximum tumor-free interval are : 1 ) adjunctive lymphadenectomy at the initial operation when 1 or more lymph nodes contain tumor , 2 ) close followup of all patients with pheochromocytoma by diagnostic biochemical assay for 15 years and 3 ) an aggressive excision of all single or multiple recurrent pheochromocytomas as soon as a biochemical diagnosis is established .
C0024203
lymphadenectomy
C0024204
lymph nodes