“…12 The trauma may be direct, such as orbital penetration, or indirect, like impingement by a bony spicule or from a middle cranial fossa fracture resulting in a tear in the wall of ICA. Iatrogenic causes are multiple, including Le Fort I osteotomy, [13][14][15] maxillectomy, 16 orbital floor fracture repair, 17 septorhinoplasty, 18,19 and spheno-ethmoidal surgery. 20 Carotid cavernous fistulas have been classified as per their hemodynamic properties, etiology, or anatomy of the fistula (as shown in Supplemental Table 1, Supplemental Digital Content 1, http://links.lww.com/SCS/F812).…”