Jet Phenomenon

A narrow-shouldered column of barium that gushes past a stenosis caused by an oesophageal web, or dysfunctional cricopharynx
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Ureteral jet phenomenon; stream of opaque medium simulating an anomalous configuration of the ureter.
Ultrasonic in vivo and in vitro studies on the nature of the ureteral jet phenomenon. Radiology 1982;142:175-7.
DSA also demonstrated the classical 'jet phenomenon' as contrast flowed into the VGAM through the left medial posterior choroidal artery (Fig.