Neck swellings which mimic branchial cysts in HIV-positive patients.

A retrospective review of over 700 HIV-positive patients referred to the ENT department at St Mary's Hospital was undertaken. This revealed nine patients whose initial presentation was due to an upper neck swelling. The clinical and cytological results are discussed as well as consideration of the similarity of these lesions to branchial cysts, and the implication of the involvement of lymphoid tissue in the aetiology of branchial cysts. With the increasing incidence of HIV infection it is important that patients with these lesions are investigated appropriately before any surgery is contemplated.