Double track sign (pyloric stenosis)
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The double track sign is a radiological sign described in pyloric stenosis on various imaging modalities.
Barium study
Double streaks of barium passing through the narrow pylorus.1.
Ultrasound
On fluid aided real-time examination, the pyloric fluid is compressed into smaller tracks as it is impinged upon circumferentially by the thickened circular muscle.2.
Double track sign can also be seen in cases of pylorospasm diagnosed by sonography, provingtherefore it is not to be pathognomonic for hypertrophic pyloric stenosis.3.
-<p>The <strong>double track sign </strong>is a radiological sign described in <a href="/articles/pyloric-stenosis">pyloric stenosis</a> on various imaging modalities. </p><h4>Barium study</h4><p>Double streaks of barium passing through the narrow pylorus.<sup>1</sup></p><h4>Ultrasound</h4><p>On <a href="/articles/fluid-aided-real-time-examination">fluid aided real-time examination</a>, pyloric fluid compressed into smaller tracks as it is impinged upon circumferentially by the thickened circular muscle.<sup>2</sup></p><p>Double track sign can also be seen in cases of <a href="/articles/pylorospasm">pylorospasm</a> diagnosed by sonography, proving it not to be pathognomonic for hypertrophic pyloric stenosis.<sup>3</sup></p>- +<p>The <strong>double track sign </strong>is a radiological sign described in <a href="/articles/pyloric-stenosis">pyloric stenosis</a> on various imaging modalities. </p><h4>Barium study</h4><p>Double streaks of barium passing through the narrow pylorus <sup>1</sup>.</p><h4>Ultrasound</h4><p>On <a href="/articles/fluid-aided-real-time-examination">fluid aided real-time examination</a>, the pyloric fluid is compressed into smaller tracks as it is impinged upon circumferentially by the thickened circular muscle <sup>2</sup>.</p><p>Double track sign can also be seen in cases of <a href="/articles/pylorospasm">pylorospasm</a> diagnosed by sonography, therefore it is not pathognomonic for hypertrophic pyloric stenosis <sup>3</sup>.</p>
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