Spontaneous intrapetrous internal carotid artery dissection: A case report and literature review

Dissection of the Internal Carotid Artery After SCUBA-Diving

“…Although there is a well-known association between cervical trauma and the incidence of cervical artery dissection, [3][4][5][6]12 only few literature reports exist about the causal relationship between SCUBA-diving and carotid or vertebral artery dissection. 7-10 In 4 of the cases associated with SCUBAdiving, dissection is localized at the carotid arteries; one case describes an extracranial vertebral artery dissection.…”

“…Regarding hyperextension and rotation of the neck, a stretching of the arterial wall in the mobile cervical segment is being discussed to provoke the intimal tear. 3,12 There are reports about carotid artery dissection because of the same pathway during various sports activities. 1,3,14,15 Diving-related CAD may be related to the same pathophysiologic mechanism of motion-dependent wall injury.…”

Internal Carotid Artery Occlusion Manifesting Only as Oculomotor Nerve Palsy

“…T1-weighted MRI shows crescent-shaped wall hematoma with intermediate signal intensity, and T2-weighted imaging shows high signal intensity area and eccentric flow void of the patent lumen in the acute stage of ICA dissection. 7 Previous cases of ICA occlusion were caused by atherosclerosis, 1 spontaneous dissection, 2 and unknown cause. 3 Arterial dissection was unlikely to be the cause of the ICA occlusion in the current case, because MRI demonstrated none of these findings.…”

Anatomic Characteristics of Intrapetrous Carotid Artery: A 3-Dimensional Segmentation Study on Head Computed Tomography Scan

“…The intrapetrous portion of the internal carotid artery has gained a growing interest in surgery, not only because it may be involved in different pathologies [5][6][7][8] , but also because it may be accidentally damaged during surgical procedures of the skull base 9 ; in addition, it is often the target of pioneering bypass procedures used to handle vascular lesions and preliminary to the removal neoplasms infiltrating the petrous portion of the temporal bone 10 . Several authors have widely described the strict relationships with surrounding structures including the cochlea, the internal auditory canal and the bony labyrinth 10,15,16 , whereas very few studies have considered the metrical assessment of IPCA so far 6 .…”

“…Isolated ICA dissections in the intrapetrous portion are reported by literature, although rarely 7 , sometimes as complications of mycotic infections of the middle ear 8 . In all these cases the analysis of anatomical characteristics of IPCA is crucial for surgical procedures 5 .…”