Maxillary ameloblastoma with orbital invasion. A clinicopathologic study

Area of Science:

• Oncology
• Ophthalmology
• Oral and Maxillofacial Surgery

Background:

• Ameloblastoma is a rare odontogenic tumor known for local invasiveness and recurrence.
• Orbital invasion by ameloblastoma is exceptionally uncommon.

Observation:

• A 72-year-old man presented with right eye proptosis.
• CT scan revealed a mass in the right maxillary sinus invading orbital and cranial cavities.
• The patient had a history of ameloblastoma excision six years prior.

Findings:

• Recurrent ameloblastoma required maxillectomy, radiotherapy, and orbital exenteration.
• Histopathologic findings confirmed recurrent ameloblastoma with unusual orbital and cranial extension.

Implications:

• This case underscores the importance of vigilant follow-up for ameloblastoma patients due to recurrence potential.
• Understanding rare presentations, like orbital invasion, is crucial for accurate diagnosis and management of jaw tumors.
• The study reviews differential diagnoses for orbital-invading jaw tumors.