Which one of the following is the treatment of choice for a desmoids tumor?

Desmoid tumors are cytologically bland fibrous neoplasms originating from the musculoaponeurotic structures throughout the body. Desmoid tumors are twice more common in females than in males. Primary surgery with negative surgical margins is the most successful primary treatment modality for desmoid tumors. Positive margins after surgery reflect a high risk for recurrence. Wide excision with a 2.5 cm margin is usually done.