Department of Ophthalmology and ENT, Khudiram Bose Sarani, R.G. Kar Medical College & Hospital, Kolkata, India.
Indian J Ophthalmol. 2009 Nov-Dec;57(6):465-7. doi: 10.4103/0301-4738.57161.
The most common abnormality of the lacrimal drainage system is congenital or acquired nasolacrimal duct obstruction. The causes of acquired nasolacrimal duct obstruction may be primary or secondary. The secondary acquired obstructions may result from infection, inflammation, neoplasm, trauma or mechanical causes. The maxillary sinus cysts usually obstruct the nasolacrimal duct mechanically. Dentigerous cysts are one of the main types of maxillary cysts. These cysts are benign odontogenic cysts which are associated with the crowns of unerupted teeth. The clinical documentations of mechanical nasolacrimal duct obstructions due to a dentigerous cyst in the maxillary sinus are very rare in literature. In this case report, we describe a dentigerous cyst with a supernumerary tooth in the maxillary sinus in an 11-year-old male child causing an obstruction to the nasolacrimal duct. The case was successfully managed surgically by Caldwell Luc approach.
最常见的泪道系统异常是先天性或后天性鼻泪管阻塞。后天性鼻泪管阻塞的原因可能是原发性或继发性的。继发性获得性阻塞可能由感染、炎症、肿瘤、创伤或机械原因引起。上颌窦囊肿通常通过机械性阻塞鼻泪管。含牙囊肿是上颌囊肿的主要类型之一。这些囊肿是良性牙源性囊肿，与未萌出牙的牙冠有关。文献中很少有因上颌窦含牙囊肿导致机械性鼻泪管阻塞的临床记录。在本病例报告中，我们描述了一个 11 岁男性儿童上颌窦内有额外牙的含牙囊肿导致鼻泪管阻塞的病例。该病例通过经 Caldwell-Luc 入路成功手术治疗。
