Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Pediatr Radiol. 2010 Dec;40(12):1868-73. doi: 10.1007/s00247-010-1719-2. Epub 2010 Jun 4.
Congenital dacryocystocele can be diagnosed prenatally by imaging. Prenatal MRI is increasingly utilized for fetal diagnosis.
To present the radiological and clinical features of seven fetuses with congenital dacryocystocele diagnosed with prenatal MRI.
The institutional database of 1,028 consecutive prenatal MR examinations performed during a period of 4 years was reviewed retrospectively. The cases of congenital dacryocystocele were identified by reading the report of each MRI study.
The incidence of dacryocystocele diagnosed with prenatal MRI was 0.7% (n = 7/1,028). The dacryocystocele was bilateral in three fetuses. Mean gestational age at the time of diagnosis was 31 weeks. The indication for prenatal MRI was the presence or the suspicion of central nervous system abnormality in six fetuses and diaphragmatic hernia in one. Dacryocystocele was associated with an intranasal cyst in six of ten eyes. Prenatal sonography revealed dacryocystocele in only two of seven fetuses. Of eight eyes with postnatal follow-up, four did not have any lacrimal symptoms.
Prenatal MRI can delineate congenital dacryocystocele more clearly and in a more detailed fashion than ultrasonography. Presence of dacryocystocele was symptomatic in only 50% of our patients, supporting that prenatal diagnosis of dacryocystocele might follow a benign course.
先天性泪囊囊肿可通过影像学诊断。产前 MRI 越来越多地用于胎儿诊断。
介绍 7 例产前 MRI 诊断的先天性泪囊囊肿胎儿的放射学和临床特征。
回顾性分析了 4 年来连续 1028 例产前 MRI 检查的机构数据库。通过阅读每例 MRI 研究的报告，确定先天性泪囊囊肿的病例。
产前 MRI 诊断出的先天性泪囊囊肿发生率为 0.7%（n=7/1028）。3 例胎儿为双侧。诊断时的平均孕龄为 31 周。6 例产前 MRI 的指征为存在或怀疑中枢神经系统异常，1 例为膈疝。10 只眼中有 6 只存在鼻内囊肿与泪囊囊肿相关。产前超声仅在 7 例胎儿中的 2 例中发现泪囊囊肿。8 只眼有产后随访，4 只眼没有任何泪溢症状。
产前 MRI 能比超声更清晰、更详细地描绘先天性泪囊囊肿。我们的患者中只有 50%的存在泪囊囊肿的症状，支持产前诊断的泪囊囊肿可能会有良性的病程。
