An isolated nasolacrimal duct osteoma

Area of Science:

• Otolaryngology
• Ophthalmology
• Neurosurgery

Background:

• Osteomas are benign bone tumors, commonly found in the paranasal sinuses.
• These tumors can cause significant symptoms due to compression of surrounding structures, including orbits and intracranial spaces.
• While typically located in the frontal, ethmoid, maxillary, and sphenoid sinuses, rare occurrences in the nasal cavity, turbinates, or orbits are documented.

Observation:

• A patient presented with symptoms of ipsilateral ocular pain, epiphora (excessive tearing), and medial canthal swelling.
• These symptoms were attributed to a rare osteoma originating in the nasolacrimal duct.
• The osteoma's location and size led to direct compression and obstruction of the nasolacrimal system.

Findings:

• An isolated osteoma of the nasolacrimal duct was identified as the cause of the patient's symptoms.
• Intranasal dacryocystorhinostomy (DCR) using nasal endoscopy was performed for diagnosis and removal.
• Successful surgical removal of the nasolacrimal duct osteoma was achieved.

Implications:

• This case highlights the importance of considering rare osteoma locations, such as the nasolacrimal duct, in the differential diagnosis of orbital and epiphora symptoms.
• Endoscopic intranasal dacryocystorhinostomy is an effective surgical approach for managing nasolacrimal duct osteomas.
• Further literature review supports the rarity and successful management of such isolated cases.