Prevalence:

• 1 in 4,000 births.

Ultrasound diagnosis:

• Cyst (75% unilateral and 25% bilateral) between the lower part of the orbit and the nose.
• About 90% of dacrocystoceles are due to delayed canalization of the lacrimal duct beyond 32 weeks’ gestation.
• Differential diagnosis includes anterior encephaloceles (they are often associated with intracranial abnormalities, such as hydrocephalus), hemangiomas (they are usually solid or multiseptated), and dermoid cysts (these are usually located superolaterally).

Associated abnormalities:

• The incidence of chromosomal abnormalities and genetic syndromes is not increased.

Investigations:

• Detailed ultrasound examination.

Follow up:

• Follow-up should be standard.

Delivery:

• Standard obstetric care and delivery.

Prognosis:

• They resolve spontaneously either in the 3rd trimester or within the first 6 months of life.
• Occasionally, nasolacrimal duct probing may be required to open the obstruction.

Recurrence:

• No increased risk of recurrence.