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 Indian J Med Microbiol  
 

Figure 5 (A-D): Types of lateral and lesser wing extension. Pictorial representation with a line drawn along the medial margins of foramen rotundum and vidian canal (orange line) on both sides. (A) Pterygoid; pneumatization extending inferior to the vidian canal on the right side into the pterygoid process. (B) Greater wing of sphenoid; pneumatization extending laterally into greater wing of sphenoid on the left side, beyond the foramen rotundum. (C) Full lateral; pterygoid + lateral on left side. (D) Lesser wing; pneumatization extending into the anterior clinoid process on the right side

Figure 5 (A-D): Types of lateral and lesser wing extension. Pictorial representation with a line drawn along the medial margins of foramen rotundum and vidian canal (orange line) on both sides. (A) Pterygoid; pneumatization extending inferior to the vidian canal on the right side into the pterygoid process. (B) Greater wing of sphenoid; pneumatization extending laterally into greater wing of sphenoid on the left side, beyond the foramen rotundum. (C) Full lateral; pterygoid + lateral on left side. (D) Lesser wing; pneumatization extending into the anterior clinoid process on the right side