False positive lung perfusion/ventilation scan due to rapidly resolved pulmonary abnormalities: Importance of SPECT/CT imaging
Iranian Journal of Nuclear Medicine
; 30(2):132-135, 2022.
Article
in English
| EMBASE | ID: covidwho-1980463
ABSTRACT
An eighty-year-old lady a with history of treated tuberculosis decades ago and polymerase chain reaction (PCR) proven COVID-19 pneumonia about four months ago was referred to our department for ventilation/perfusion scan due to deteriorating dyspnea to rule out P.E. Planar perfusion scan showed bilateral accentuated apical perfusion gradient and multiple segmental and non-segmental perfusion defects in both lungs, which were mismatched with relatively normal planar ventilation images. Perfusion SPECT images also showed multiple segmental, sub-segmental and semi-segmental perfusion defects, which proved to be concordant with consolidations, bilateral pleural effusion, right lung pneumothorax, and atelectasis which were consultant with CT findings. The ventilation SPECT/CT images also demonstrated uniform tracer activity throughout both lungs, with almost complete improvement in consolidations, lung pneumothorax, pleural effusion, and atelectasis. Our case highlights the importance of SPECT/CT imaging in avoiding false-positive interpretation of pulmonary embolism as well as the possibility for rapid resolution of the lung parenchymal abnormalities
nebulizer; macrosalb tc 99m; pentetate technetium tc 99m; aged; article; atelectasis; case report; clinical article; consultation; coronavirus disease 2019; deterioration; dyspnea; false positive result; female; human; image analysis; lung consolidation; lung disease; lung embolism; lung parenchyma; lung tuberculosis; medical history; patient referral; pleura effusion; pneumothorax; polymerase chain reaction; single photon emission computed tomography-computed tomography; ventilation-perfusion scan; very elderly
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Collection:
Databases of international organizations
Database:
EMBASE
Language:
English
Journal:
Iranian Journal of Nuclear Medicine
Year:
2022
Document Type:
Article
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