Congenital dacryocystocele diagnosed by antenatal ultrasonography with spontaneous resolution

ABSTRACT Dacryocystocele is a rare benign facial abnormality of the nasolacrimal system, which may be detected at the antenatal workup during the third trimester of pregnancy. Ultrasound is the method of choice for this examination. However, magnetic resonance imaging may also be used in selected cases. Dacryocystocele is mostly a transient finding; it may resolve spontaneously in utero or postnatally. When the defect is bilateral and persists in neonatal life, it may lead to respiratory complications. We report a case of a fetus with bilateral dacryocystocele diagnosed by prenatal ultrasound at the beginning of the third trimester of pregnancy with spontaneous postpartum resorption.

摘要：泪囊膨出（Dacryocystocele）是一种罕见的良性鼻泪系统面部畸形，可在妊娠晚期的产前检查中被检出。超声检查是诊断此类病症的首选影像学手段，部分特定病例也可采用磁共振成像（Magnetic Resonance Imaging）进行检查。泪囊膨出大多为一过性征象，可在宫内或产后自发消退。若病变为双侧且在新生儿期仍持续存在，则可能引发呼吸系统并发症。本文报告一例于妊娠第三孕程初期通过产前超声诊断为双侧泪囊膨出的胎儿，其病变实现了产后自发吸收。