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CT Findings of Multifocal Hypervascular Hepatocellular Carcinoma With Intratumoral Pseudoaneurysm

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  Edited by ScholarGen MediAI Editorial Team When a Hypervascular Liver Mass Is More Than a Diagnosis Executive Answer Multifocal hypervascular hepatic tumors demonstrating arterial phase hyperenhancement, portal venous washout, extensive necrosis, and prominent intratumoral vascular structures strongly raise concern for hepatocellular carcinoma (HCC) in the appropriate clinical setting. In this case, the most clinically important imaging feature is an aneurysmal or pseudoaneurysmal vascular outpouching within the dominant exophytic hepatic tumor. This finding is important because it may indicate a vascular complication with potential hemorrhagic or rupture risk. The radiologist must therefore evaluate not only tumor diagnosis and extent, but also vascular anatomy, treatment implications, and potential complications. Why This Case Matters A large liver mass is not defined simply by its size. For the radiologist, the more important questions are: How does the tumor enhance? What doe...
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CT Findings of Double Aortic Arch in an Older Adult: Recognizing a Right-Dominant Complete Vascular Ring

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Edited by ScholarGen MediAI Team Executive Answer A double aortic arch is a congenital aortic arch anomaly in which both right and left aortic arches persist and form a vascular ring around the trachea and esophagus. In this case, a man in his 70s presented with chest pain and underwent CT pulmonary angiography (CTPA) to evaluate for pulmonary embolism. No acute pulmonary embolism was identified. Instead, CT revealed a right-dominant double aortic arch forming a complete vascular ring . The key radiologic task is not simply to recognize two arches, but to define arch dominance, branch-vessel anatomy, and the relationship of the vascular ring to the trachea and esophagus. Why This Case Matters A CT examination is ordered for a clinical reason, but the images often contain diagnostic information far beyond the initial question. This case is a good example. A man in his 70s presented with chest pain, and CTPA was performed to exclude acute pulmonary embolism. The pulmonary arteries showed...
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