Nasopalatine duct cyst

The nasopalatine duct cyst (NPDC) occurs in the median of the palate, usually anterior to first molars.

It is usually asymptomatic, but may sometimes produce an elevation in the anterior portion of the palate.

Nasopalatine duct cysts usually present as asymptomatic palatal swellings, but they may rarely be accompanied by pain and/or purulent discharge.

Although it was originally postulated that the cyst formed from trapped epithelial cells during embryonic fusion of the palatal bones,[3] it is now thought that it forms from oronasal ducts present within the incisive canals.

Radiographically, the nasopalatine cyst appears as a well-demarcated round, ovoid, or heart-shaped structure presenting in the midline of the maxilla.