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  • Title: Esophageal dysmotility as a serendipitous observation on ventilation-perfusion imaging of the lungs.
    Author: Moallem A, Hilfer C, Stein A.
    Journal: Clin Nucl Med; 1992 Jun; 17(6):446-8. PubMed ID: 1617836.
    Abstract:
    Tc-99m DTPA aerosol is often swallowed during inhalation for lung ventilation scans. The authors evaluated a 16-year-old girl with a known history of mixed collagen disorder (positive lupus anticoagulants) for symptoms of cough and acute shortness of breath. Tc-99m DTPA accumulated in the distal esophagus during aerosol inhalation and remained there at the end of the perfusion study, a period of approximately 1 hour. This serendipitous observation antedates clinical signs and symptoms of dysphagia.
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