Fig. 2
From: Imaging findings of the orbital and intracranial complications of acute bacterial rhinosinusitis
Orbital anatomy: a) Axial CT images in soft tissue window showing the orbital septum (arrow). b) Sagittal image showing the preseptal fat (short arrow), and the postseptal (extraconal) fat (long arrow); the intraconal fat (black arrow) is separated from the postseptal/orbital fat by the rectus muscles (* superior rectus muscle together with levator palpebrae superioris muscle)