Abstract
Embryological anomalies of the first branchial apparatus result in rare forms of developmental abnormality of the head and neck. We described two cases of first branchial cleft cyst. The swelling and otorrhea disappeared after drainage in both cases. The definitive therapy of this cyst is complete surgical resection. However, when this procedure is performed, in most cases parotidectomy and exposure of the facial nerve are required. Accordingly, facial nerve injury is a complication. We thought that if the swelling was not seen after drainage, the first choice of therapy was not only surgical resection.