Lateral periodontal cyst, developmental in origin, typically is observed in the cuspid–bicuspid region of the mandible and less frequently in the maxilla. It may arise initially as a dentigerous cyst developing by expansion of the follicle along the lateral surface of the crown which eventually comes to lie on the lateral aspect of the root if tooth eruption is normal. Alternatively, it may arise from the cell rests of malassez. The incidence of lateral periodontal cysts has been reported to be less than 1% and these cysts represent nearly 0.8% of all central cysts of the maxillary bone. Here we present one such case with unusual findings.

SUMMARYThe use of multiple weekly intralesional injections of 3% sodium tetradecyl sulfate as a sclerosing agent for the management of facial haemangiomas is a safe treatment with acceptable results. As presented in this case report, this technique offers the patient considerable relief of symptoms with minimal complications. However, the possibility of second-stage surgery to correct residual deformity is still considered. Sclerotherapy with 3% sodium tetradecyl sulfate provides a good preparation for further surgery. BACKGROUND