Dermoid Cyst of a Branchial Cleft

A woman with dermoid of the neck was admitted to the Bristol Royal Infirmary in February last, under the care of Mr. A. W. Prichard. She had a large bilateral tumour with a median isthmus in the submaxillary region, non-adherent to the skin and stationary on deglutition. The right lobe could be moulded, like putty, into any shape, and the fingers imparted their impressions to it. The left, harder and somewhat inflamed, had been incised four days before admission, when it is said fluid, like " fat," came away. Through the opening, the little finger could be inserted along the interior of the isthmus beyond the middle line. In addition there was a tubercle between the angle of the jaw and lobule of the ear, and there was a small