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Images in Neurology |

Thrombosis of the Posterior Cerebral Artery (PCA) Visualized on Computed Tomography The Dense PCA Sign

Norman Bettle, MD; Patrick D. Lyden, MD
Arch Neurol. 2004;61(12):1960-1961. doi:10.1001/archneur.61.12.1960.
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Brandt  TSteinke  WThie  APessin  MSCaplan  LR Posterior cerebral artery territory infarcts: clinical features, infarct topography, causes and outcome: multicenter results and a review of the literature. Cerebrovasc Dis 2000;10170- 182
PubMed Link to Article[[XSLOpenURL/10.1159/000016053]]
Tomsick  TABrott  TGOlinger  CP  et al.  Hyperdense middle cerebral artery: incidence and quantitative significance. Neuroradiology 1989;31312- 315
PubMed Link to Article[[XSLOpenURL/10.1007/BF00344173]]
Bakshi  RMazziotta  JC Acute middle cerebral artery thrombosis demonstrated by cranial computed tomography: the “dense MCA” sign. Arch Neurol 1998;551577
PubMed Link to Article[[XSLOpenURL/10.1001/archneur.55.12.1577]]
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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 posterior cerebral artery (PCA) with increased density along the proximal course of the PCA.

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Figure 2.

A noncontrast computed tomographic scan of patient 2’s head shows a hyperdensity along the proximal right posterior cerebral artery (A) that matches an area of absent blood flow on magnetic resonance angiography (B).

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