Iannetti classification of orbital invasion
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At the time the article was created Marcos Gil Alberto da Veiga had no recorded disclosures.View Marcos Gil Alberto da Veiga's current disclosures
At the time the article was last revised Francis Deng had no recorded disclosures.View Francis Deng's current disclosures
The Iannetti classification grades orbital invasion by ethmoido-orbital tumors, such as adenocarcinoma, squamous cell carcinoma, adenoid cystic carcinoma, undifferentiated carcinoma, sarcoma, or olfactory neuroblastoma.
- grade I: erosion or destruction of the orbital medial wall
- grade II: extraconal invasion of the periorbital fat tissue
grade III: invasion of the medial rectus muscle, optic nerve, ocular bulb, or skin overlying the eyelid