XXXX in the adult.

@entity1 @entity3609 @entity3799 @entity2696
@entity3799 is rare among adults. Thirty-two @entity1 with cervical @entity2696 were treated at the Mayo Clinic between 1950 and 1982. The records of these @entity1 were reviewed to investigate the clinical and pathologic behavior of this lesion in @entity1 more than 16 years of age. The lesions were seen in all decades of adult life and equally in @entity1 and @entity1 . Most lesions presented as a rapidly enlarging, asymptomatic mass. The anterior triangle of the neck was involved nearly as often as the posterior triangle, and right-sided locations predominated (72%). Histopathologic differentiation of the lesions into simplex, cavernous, and @entity3609 was not helpful in predicting clinical behavior. Surgical excision is the treatment of choice. The lesions may intimately involve the carotid sheath or adjacent nerves. Recurrence in 21% of the 28 @entity1 on whom follow-up data were available mostly represented incomplete excision. @entity2696 should be included in the differential diagnosis of a large asymptomatic neck mass of recent origin in the adult.
