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Thrombosis of the Posterior Cerebral Artery (PCA) Visualized on Computed Tomography
The Dense PCA Sign
Arch Neurol. 2004;61:1960-1961.
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PATIENT 1
A 59-year-old right-handed man presented to the emergency department with right-sided weakness and numbness of acute onset and 2 days’ duration. He denied any previously diagnosed medical conditions or medication use, was homeless, and admitted to drinking several beers a day. Results of an examination showed a right homonymous hemianopia, moderate right hemiparesis with mild spasticity, hyperreflexia, and a Babinski sign on the right. The findings were consistent with an infarct in the distribution of the left posterior cerebral artery (PCA).1 A noncontrast computed tomographic scan of the head showed hypodensity and sulcal effacement in the vascular territory of the left PCA, with increased density along the proximal course of the PCA. In addition, chronic bilateral lacunar infarcts and global atrophy were noted (Figure 1).
Figure appears in full text version.
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Figure 1. A noncontrast computed tomographic scan of patient 1’s head shows hypodensity and sulcal effacement in the vascular territory of the left . . . [Full Text of this Article]
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PATIENT 2
AUTHOR INFORMATION
Norman Bettle, MD;
Patrick D. Lyden, MD
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES
The Hyperdense Posterior Cerebral Artery Sign: A Computed Tomography Marker of Acute Ischemia in the Posterior Cerebral Artery Territory
Krings et al.
Stroke 2006;37:399-403.
ABSTRACT
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