[Lateral cysts and fistulas of the neck. Diagnosis and treatment].

Lateral neck cysts and fistulae are considered to be a well-defined clinical entity which needs a precise knowledge of the development of the branchial system to have an appropriate and subsequent successful treatment. According to the recent classification cysts of I and II type and fistulae of I, II and III type can be recognized. In the former ultrasonography and Computerized Tomography represent the most appropriate diagnostic tools, while in the latter fistulography is preferred. An elective surgical excision seem to be resolutive in the majority of cases: on the contrary emergency surgery is related to a certain relapse of this pathology. 45 cases of branchial pathology are reported; diagnostic and therapeutic choices are then discussed.