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Basilar hyperlucency in a patient with emphysema due to hypocomplementemic urticarial vasculitis syndrome

, : Basilar hyperlucency in a patient with emphysema due to hypocomplementemic urticarial vasculitis syndrome. Respiratory Care 48(7): 697-699

Disproportionate emphysematous involvement of the lung bases, compared with the apices, sometimes called basilar hyperlucency, is an unusual radiographic pattern that has been reported primarily in patients with alpha-1 antitrypsin deficiency, but also in individuals with emphysema caused by intravenous injection of methylphenidate. We present a patient with emphysema associated with hypocomplementemic urticarial vasculitis syndrome and whose chest radiograph demonstrated basilar hyperlucency. To the extent that basilar hyperlucency has not been well recognized as a feature of hypocomplementemic urticarial vasculitis syndrome, this report extends the spectrum of causes of this unusual radiographic pattern of emphysema.


PMID: 12841861

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