Tumor del corpúsculo carotídeo

carotid body tumors, paragangliomas or chemodectomas are uncommon neoplasms originating from paraganglion tissues, generally are benign, of slow growth and painless course, have a great vascular component in its structure. they may to show an aggressive locoregional behavior despite histologically haven't malignancy signs. frequently are present in patients inhabit in high altitude regions. may to be sporadic or familial and occasionally are associated with paragangliomas in other sites. present case was treated in our service, which demonstrates its local aggressive behavior.