MediAI

  Vertebral Artery Hypoplasia: The Hidden Cerebrovascular Variant Every Radiologist Should Recognize Imagine a healthy 37-year-old professional who experiences repeated episodes of dizziness while working at a computer. Sometimes the room appears to spin. Occasionally, severe migraine-like headaches develop without warning. Routine blood tests are normal. Ear examinations reveal nothing remarkable. Several clinic visits led to reassurance that stress is probably responsible. Months later, advanced medical imaging uncovers the true explanation—not a tumor, not multiple sclerosis, and not an obvious stroke, but a congenital vascular variant that many patients carry throughout life without ever knowing. That condition is Vertebral Artery Hypoplasia (VAH). Although traditionally regarded as a benign anatomical variation, increasing evidence suggests that VAH may reduce posterior circulation reserve and contribute to symptoms in selected patients, particularly when combined with vascul...

  Binocular visual loss, acute visual loss, cardioembolic stroke, cerebral angiography, DSA, selective intraarterial thrombolysis, visual pathway infarction, posterior circulation stroke, occipital lobe infarction, cortical blindness, visual pathway ischemia, neuro-ophthalmology, emergency stroke imaging, interventional neuroradiology   PART 2 — CLINICAL MASTERCLASS & ADVANCED IMAGING INTERPRETATION Binocular Visual Loss Caused by Acute Cardioembolic Stroke SECTION 10 — CLINICAL PRESENTATION: NEURO-OPHTHALMOLOGIC MASTERCLASS 10.1 Clinical Spectrum of Acute Binocular Visual Loss Acute binocular visual loss represents one of the most catastrophic neurological symptoms, indicating bilateral involvement of central visual processing structures . Unlike monocular vision loss, which frequently reflects ocular or anterior optic pathway pathology, binocular visual loss almost always implies post-chiasmal or cortical dysfunction , most commonly due to ischemic stroke. The clinic...