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 Indian J Med Microbiol  
 

Figure 14: Coronal CT showing type IV optic nerve on the right (arrow) -The nerve course lies immediately adjacent to the sphenoid and posterior ethmoid sinus. O: Onodi cell; S: Sphenoid sinus

Figure 14: Coronal CT showing type IV optic nerve on the right (arrow) -The nerve course lies immediately adjacent to the sphenoid and posterior ethmoid sinus. O: Onodi cell; S: Sphenoid sinus