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Takayasu Arteritis on Neck CTA: A 30s Woman With Dizziness, Carotid Stenosis, and Subclavian Artery Occlusion

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  Edited by ScholarGen MediAI Team Executive Answer Takayasu arteritis should be considered when a young patient presents with otherwise unexplained systemic symptoms and dizziness together with multifocal large-vessel abnormalities. In this case, neck CT angiography (CTA) demonstrated bilateral subclavian artery origin occlusion, severe proximal right common carotid artery stenosis, diffuse narrowing of the right internal carotid artery, and approximately 75% stenosis of the left common carotid artery. Concentric arterial wall thickening and collateral reconstitution further support a large-vessel vasculitic process. The key radiologic lesson is that Takayasu arteritis is not simply a stenosis diagnosis: the radiologist must interpret the arterial wall, lesion distribution, occlusion, distal reconstitution, collateral circulation, and potential complications as one vascular system. Why This Case Matters Dizziness is common and has a broad differential diagnosis. Inner-ear disorder...
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Pediatric Ménétrier Disease: CT and Endoscopic Findings of Giant Gastric Folds in a 5-Year-Old Boy

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  Edited by ScholarGen MediAI Team Executive Answer Ménétrier disease is a rare protein-losing gastropathy characterized by markedly enlarged gastric rugal folds, typically involving the gastric body and fundus, with associated hypoalbuminemia and edema. In this 5-year-old boy, the combination of nausea, vomiting, intermittent abdominal pain, mild periorbital edema, severe hypoalbuminemia, and giant cerebriform gastric folds on contrast-enhanced CT and endoscopy strongly supports pediatric Ménétrier disease. Gastric biopsy demonstrated foveolar hyperplasia with glandular atrophy, while testing for Helicobacter pylori and viral inclusions was negative. Technetium-99m-labeled human serum albumin scintigraphy demonstrated gastrointestinal protein loss. The child improved with supportive treatment, with symptoms resolving four months after presentation. Why This Case Matters Pediatric Ménétrier disease is uncommon and can initially resemble a much more routine gastrointestinal illness...
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Ileoileal Intussusception in a 1-Year-Old Boy: Ultrasound Findings, Bowel Ischemia, and Meckel Diverticulum as a Lead Point

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Edited by ScholarGen MediAI Team Executive Answer Ileocolic intussusception is an uncommon form of pediatric intussusception in which one segment of ileum telescopes into an adjacent segment of ileum. In this 1-year-old boy, persistent vomiting despite treatment prompted abdominal radiography followed by ultrasound. The radiographs showed dilated small-bowel loops and multiple air-fluid levels with little gas in the lower abdomen, suggesting small-bowel obstruction. Ultrasound demonstrated the characteristic layered appearance of small-bowel intussusception, including a pseudokidney appearance on longitudinal imaging. Color Doppler showed partially preserved wall vessels but absent detectable flow in portions of the involved bowel, raising concern for ischemia. Surgery confirmed irreducible ileoileal intussusception with bowel ischemia, requiring resection. Pathology identified a Meckel diverticulum, which was considered the pathologic lead point. Why This Case Matters Intussusception ...
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