Sarangi Snehanjan, Ray Debarati, Bhattacharjee Tathagata, Ray Jay Gopal
Department of Oral Pathology, Dr. R Ahmed Dental College, West Bengal, India.
J Oral Maxillofac Pathol. 2024 Jul-Sep;28(3):483-487. doi: 10.4103/jomfp.jomfp_3_24. Epub 2024 Oct 15.
Nasopalatine duct cysts (NPDCs) are among the most common nonodontogenic cysts, typically located in the midline of anterior maxillary hard palate. They usually arise from the embryonic epithelial vestiges of the nasopalatine duct. NPDCs predominantly affect adult males, generally during their fourth decade of life. Clinically, they present as asymptomatic or occasionally painful, fluctuant or discharging swellings involving the hard palate. Radiographically, NPDCs are characterized by a well-defined, fairly corticated, inverted pear-shaped or heart-shaped radiolucency situated between the roots of the maxillary incisors. Histopathologically, NPDCs exhibit a wide spectrum of findings. The lining may be comprised of stratified squamous, pseudostratified ciliated columnar, columnar, or cuboidal epithelium, or a combination and transition of these types. The cystic capsule is fibrocollagenous and can exhibit certain unique features, such as neurovascular bundles, mucous glands, and cartilaginous rests. NPDCs are typically managed through surgical enucleation, and recurrences are rare. Herein, we present two cases of NPDCs, along with a brief overview of their origin, relevant diagnostic features, and management.
鼻腭管囊肿(NPDC)是最常见的非牙源性囊肿之一,通常位于上颌前部硬腭中线处。它们通常起源于鼻腭管的胚胎上皮残余。NPDC主要影响成年男性,一般在其生命的第四个十年。临床上,它们表现为无症状,或偶尔疼痛,硬腭出现波动性或有分泌物的肿胀。影像学上,NPDC的特征是在上颌切牙牙根之间有一个边界清晰、有相当程度皮质化、倒梨形或心形的透光区。组织病理学上,NPDC表现出广泛的发现。内衬可能由复层鳞状上皮、假复层纤毛柱状上皮、柱状上皮或立方上皮组成,或这些类型的组合和过渡。囊壁为纤维胶原性,可表现出某些独特特征,如神经血管束、黏液腺和软骨残余。NPDC通常通过手术摘除进行治疗,复发罕见。在此,我们介绍两例NPDC病例,并简要概述其起源、相关诊断特征和治疗方法。