Nasopalatine Duct Cyst Masquerading as Dentigerous Cyst - A Rare Case Report

Manisha D Yadav; Deepa Das; Bhakti Patil Soman

Volume : IX, Issue : VIII, August - 2020

Nasopalatine Duct Cyst Masquerading as Dentigerous Cyst - A Rare Case Report

Manisha D Yadav, Deepa Das, Bhakti Patil Soman

Abstract :

The Nasopalatine duct cyst (NPDC) or the incisive canal cyst is the most common non-odontogenic cyst in the maxilla. It is thought to originate from epithelial remnants of Nasopalatine duct (NPD), which might be stimulated to proliferate by trauma, infection, mucous retention or by spontaneous cystic degeneration. The clinical and radiographic presentation of NPDC could be varied and can often pose a diagnostic challenge. It usually presents as a painless swelling in the area of the incisive papilla and on radiographs as a well-defined heart shaped radiolucency in the premaxillary region between the central incisors. NPDC was considered as a fissural cyst in the past, but now WHO has classified it as a developmental, epithelial, non-odontogenic cyst. A rare case of NPDC which was at first misdiagnosed as dentigerous cyst on conventional radiography due to the presence of an impacted tooth is presented here. The utility of advanced imaging for proper diagnosis of NPDC is highlighted through the present case report. This case emphasizes the necessity to study maxillary cysts extensively both clinically and with advanced radiography for accurate diagnosis.