Abstract
Two cases of nasopalatine duct cyst were investigated clinically and histopathologically. The patients were 47 and 29 year-old females. Inflammatory symptoms were seen in the labial gingiva of the upper front teeth and the middle part of the palate. In X-ray findings, there was a pear-shaped or heart-shaped X-ray image the size of the tip of the little finger in the area corresponding to the incisive canal. In the operative findings, there was a cyst in the incisive canal in each case, and adhesion between the cystic wall and the nasopalatine nerve. There was no relation between the cysts and the apexes of the central incisors. In the histopathological findings, the cystic wall consisted of stratified epithelium in both cases, and there was also some ciliated pseudostratified epithelium in one case. There was subcutaneous infiltration of inflammatory cells, as well as nerve tissue in one case and a vessel in one case.
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