[Intra-orbital space occupying lesion. Differential diagnostic considerations based on a rare case]

Area of Science:

• Ophthalmology
• Oncology
• Pathology

Background:

• Intraorbital tumors present a diagnostic challenge, often requiring histopathological confirmation.
• Cystic formations within the orbit are rare but can mimic other pathologies.

Observation:

• A rare case of a cystic intraorbital tumor presenting in the lacrimal duct.
• Rapidly progressing exophthalmos and visual loss indicated urgent intervention.

Findings:

• Surgical extirpation via medial orbitotomy successfully removed the cystic tumor.
• The tumor was unrelated to the paranasal sinuses.
• Postoperative recovery showed complete resolution of exophthalmos and visual defects.

Implications:

• This case underscores the complexities in diagnosing intraorbital masses.
• Interdisciplinary collaboration is crucial for accurate diagnosis and management.
• Surgical exploration and histopathology are often definitive for intraorbital lesions.