Orbital dermoid cyst of conjunctival origin

Area of Science:

• Ophthalmology
• Pathology
• Medical Imaging

Background:

• Orbital masses can cause significant ocular displacement and visual disturbances.
• Dermoid cysts are congenital tumors that can occur in various locations, including the orbit.

Observation:

• A 17-year-old female presented with downward and lateral displacement of her right eye.
• A fluctuant mass was noted in the superonasal anterior orbit.
• Computed tomography revealed a rounded, nonhomogeneous, cystic lesion.

Findings:

• Surgical excision of the orbital mass was performed.
• Histopathologic examination confirmed the lesion to be a dermoid cyst.
• The cyst lining was identified as conjunctival epithelium.

Implications:

• This case highlights the importance of considering dermoid cysts in the differential diagnosis of pediatric orbital masses.
• Accurate diagnosis through imaging and histopathology is crucial for appropriate management.
• Complete surgical excision is an effective treatment for orbital dermoid cysts.