| PICTORIAL ESSAY |
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| Year : 2018 | Volume
: 33
| Issue : 4 | Page : 312-316 |
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Acquired whole-lung mismatched perfusion defects on pulmonary ventilation/perfusion scintigraphy
Andrew W Bowman1, Brittany K Albers2, Manoj K Jain1
1 Department of Radiology, Mayo Clinic, Jacksonville, Florida, USA
2 Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
Correspondence Address:
Andrew W Bowman
Department of Radiology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, Florida 32224
USA
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ijnm.IJNM_60_18
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Despite the increasing use of computed tomography pulmonary angiography to evaluate for pulmonary embolism (PE), ventilation/perfusion (V/Q) scintigraphy is still a fairly common examination. A rare finding on V/Q scintigraphy is whole-lung mismatched perfusion defect. Although this finding can occur with PE, it has an important, limited differential diagnosis. In this pictorial essay, we describe different causes of acquired whole-lung mismatched perfusion defect.
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