Orbital Cyst with Ependymal Differentiation Associated with Microphthalmia

Area of Science:

• Ophthalmology
• Pediatric Neurology
• Developmental Biology

Background:

• Orbital cysts associated with microphthalmia are typically colobomatous lesions.
• These lesions usually present unilaterally and are located posterior to the globe.

Observation:

• A male infant presented with an unusual orbital cyst.
• The cyst was located anterior to the globe, unlike typical presentations.
• Histological examination revealed a neuroglial wall and ependymal-like epithelial lining.

Findings:

• The cyst contained synaptophysin-positive cells.
• These cells resembled the retinal neuronal layer.
• The cyst's composition suggests a unique developmental anomaly.

Implications:

• This case challenges the conventional understanding of orbital cysts in microphthalmia.
• The findings suggest the cyst may be a primary ocular malformation.
• Further research is needed to differentiate these cysts from encephaloceles.