The persistent nephrogram: A sentinel sign of contrast reaction.
Two cases are presented in which a serious contrast reaction was accompanied by a dense persistent nephrogram. This radiologic sign results from the patient's systemic hypotension and provides the physician with an opportunity for earlier, more effective therapy.
D000328:Adult; D003287:Contrast Media / Q000009:adverse effects*; D006801:Humans; D007022:Hypotension / Q000209:etiology*; D008297:Male; D014567:Urography / Q000009:adverse effects*
D003287:Contrast Media