Surgery

Kamli Rani 75 yrs old woman present with post myocardial infarction after 6 weeks with mild CHF. He had a history of neck surgery for parathyroid adenoma 5 years ago. EKG shows slow arial fibrillation. Serum Ca+213.0 mg/L and urinary Ca+2 is 300 mg/24h. On examination a small mass is felt in the para tracheal position. Which of the following is the most appropriate management?