Excision of cervical cystic lymphangioma using injection of hydrocolloid dental impression material

A lymphangioma, arising in an adult patient, was completely removed after injection of hydrocolloid dental impression material. The postoperative course was uneventful, with no sign of foreign-body reaction. The agar impression material, which had excellent tractability during operation, may be used as a filling material, as long as preoperative examinations show that the tumor does not involve major vessels or nerves.