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Nuclear Medicine and Molecular Imaging

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25.01.2016 | Interesting Image

Vertebral Uptake of Tc-99m Macroaggregated Albumin (MAA) with SPECT/CT Occurring in Superior Vena Cava Obstruction

verfasst von: Shawn Karls, Hani Hassoun, Vilma Derbekyan

Erschienen in: Nuclear Medicine and Molecular Imaging | Ausgabe 3/2016

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Abstract

A 67-year-old male presented with dyspnea for which lung scintigraphy was ordered to rule out pulmonary embolus. Planar images demonstrated abnormal midline uptake of Tc-99m macroaggregated albumin, which SPECT/CT localized to several thoracic vertebrae. Thoracic vertebral uptake on perfusion lung scintigraphy was previously described on planar imaging. Radionuclide venography and contrast-enhanced CT subsequently demonstrated superior vena cava (SVC) obstruction with collateralization through the azygous/hemiazygous system and vertebral venous plexus. SPECT/CT differentiated residual esophageal/tracheal ventilation activity, a clinically insignificant finding, from vertebral uptake indicative of SVC obstruction, a potentially life-threatening condition.

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Titel: Vertebral Uptake of Tc-99m Macroaggregated Albumin (MAA) with SPECT/CT Occurring in Superior Vena Cava Obstruction
verfasst von: Shawn Karls
Hani Hassoun
Vilma Derbekyan
Publikationsdatum: 25.01.2016
Verlag: Springer Berlin Heidelberg
Erschienen in: Nuclear Medicine and Molecular Imaging / Ausgabe 3/2016
Print ISSN: 1869-3474
Elektronische ISSN: 1869-3482
DOI: https://doi.org/10.1007/s13139-015-0372-y

Springer Medizin

Abstract

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