A comparative study of two techniques for excision of midline nasal dermoids: how we do it.

摘要

Editor, Nasal dermoids are uncommon, reported in 1 in every 20000-40000 live births, and the first reported cases date back to 1829.It is theorised that if developing skin adheres to the fibrous nasal capsule, then it may be pulled posteriorly and superiorly forming an epithelial tract to the skull base. As a result of the embryological origins, the nasal dermoid cyst or pit can present at any point along the mid-line of the nose, from the columella to the glabella. They are usually present at birth, but diagnosis is sometimes delayed. At the time of presentation, there may or may not be a cyst within the tract, which may also change in size and be associated with discharge from the sinus.There is a significant rate of spontaneous infection with nasal dermoids and given the possibility of intracranial extension, this creates a risk of meningitis or frontal bone osteomyelitis.