Diverticulum hypopharyngis lateralis with a record of one case.

A case of lateral hypopharyngeal diverticula is reported. This type of diverticula is comparatively rare. The diagnosis can be made clinically and confirmed by x-ray examination and hypopharyngoscopy. A pharyngocoele is of differential importance as this may be present in many patients during Valsalva, but does not indicate treatment. The reported case is most probably caused by a development defect in the third branchial cleft.