II. Pathophysiology
- Cyst resulting from Congenital Nasolacrimal Duct Obstruction (Dacryostenosis)
III. Findings
- Blue ot pink cystic mass at the medial canthus
- Other findings associated with underlying Dacryostenosis
- Epiphora
- Dacryoadenitis
IV. Differential Diagnosis
- Dermoid Cyst
- Blue Nevus
- Deep Infantile Hemangioma
- Soft and compressible
- May appear in the first few weeks of life (not typically present at birth)
- More common in premature female infants
- Associated with superficial Telangiectasias
- Frontonasal Cephalocele (uncommon in medial canthus region)
- Compressible
- May enlarge or pulsate with straining or crying
- Glioma
- Neuroblastoma
V. Management
- Uncomplicated cases
- Manual massage for Dacryostenosis
- Monitoring
- Pediatric ophthalmology referral indications (for surgical intervention, lacrimal probing)
- Persistent lesions
- Large lesions
- Complicated by inflammation (Dacryoadenitis) or infection (Dacryocystitis)