MediAI

A Comprehensive Radiologic Review Based on State-of-the-Art Literature Introduction: Why the Meningo-Ophthalmic Artery Matters The meningo-ophthalmic artery (MOA) is a rare but critically important vascular variant that every radiologist, neurosurgeon, neurologist, and neurointerventionalist must recognize. Although often asymptomatic, failure to identify this artery—particularly during middle meningeal artery (MMA) embolization or skull base interventions—can result in irreversible visual loss . With the widespread use of CT angiography (CTA), MR angiography (MRA), and digital subtraction angiography (DSA) , the detection of subtle external carotid artery (ECA)–internal carotid artery (ICA) anastomoses has increased. Among these, the meningo-ophthalmic artery represents one of the most dangerous “hidden” variants. This column provides a comprehensive, expert-level review of the pathophysiology, epidemiology, clinical presentation, imaging characteristics, differential diagnosis...

  Epidural Hemorrhage (EDH), also known as an epidural hematoma, represents a critical and potentially devastating form of traumatic brain injury (TBI). It is characterized by the accumulation of blood in the potential space between the inner surface of the skull and the outermost layer of the brain's covering, the dura mater. This condition demands immediate recognition and neurosurgical intervention to prevent catastrophic neurological deficits or death. Understanding the pathophysiology , clinical presentation , and characteristic imaging features is paramount for all clinicians, particularly those managing acute trauma.   Pathophysiology of Epidural Hemorrhage The primary mechanism leading to EDH is a severe head injury , typically involving a skull fracture . The force of the trauma often causes a tear in the underlying vascular structures, most commonly the middle meningeal artery (MMA) or one of its branches, which traverses the temporal bone. While venous s...