False Positive High Probability V/Q Scan Due to Malignant Obstruction of Both Pulmonary Vein and Artery

A 64-year-old woman with known extensive metastatic breast cancer had a V/Q scan for suspicion of pulmonary embolism. The scan was interpreted as high probability. Due to the discordant clinical status and significant presumed clot burden, the patient underwent a pulmonary CT angiogram (CTA). No art...

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Bibliographic Details
Published in:	Clinical nuclear medicine Vol. 34; no. 6; pp. 367 - 370
Main Authors:	Abikhzer, Gad, Zand, Khashayar Rafat, Stern, Jerry, Laufer, Jerome
Format:	Journal Article
Language:	English
Published:	United States Lippincott Williams & Wilkins, Inc 01-06-2009
Subjects:	False Positive Reactions Female Humans Lung Neoplasms - diagnostic imaging Middle Aged Perfusion Positron-Emission Tomography Pulmonary Artery - diagnostic imaging Pulmonary Artery - pathology Pulmonary Veins - diagnostic imaging Pulmonary Veins - pathology Tomography, X-Ray Computed
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Summary:	A 64-year-old woman with known extensive metastatic breast cancer had a V/Q scan for suspicion of pulmonary embolism. The scan was interpreted as high probability. Due to the discordant clinical status and significant presumed clot burden, the patient underwent a pulmonary CT angiogram (CTA). No arterial embolus was seen and the perfusion defects were found to be caused by malignant obstruction of the left lower lobe pulmonary vein and right pulmonary artery. This high probability ventilation and perfusion (V/Q) scan was therefore a false positive scan for the detection of pulmonary embolus.
Bibliography:	ObjectType-Case Study-2 SourceType-Scholarly Journals-1 ObjectType-Feature-4 content type line 23 ObjectType-Report-1 ObjectType-Article-3
ISSN:	0363-9762 1536-0229
DOI:	10.1097/RLU.0b013e3181a345a6