A 56 year old smoker presented with swelling over parotid region. Histology shows papillary structures composed of granular eosinophilic cells, cystic changes, and mature lymphocytic infiltration which is pathognomonic of Wahin tumor. Treatment of choice for wahin's tumor is:
Complete excision of the affected poion of the gland with uninvolved margins Enucleation Radiotherapy Injection of a sclerosant agent