Stripe sign (V/Q scan)

Case submitted by Nazim Coskun

67-year-old male

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Planar and coronal SPECT/CT images showing decreased perfusion in a consolidated area with interlobular septal thickening and air bronchograms in the upper lobe of left lung. (P:X match defect).

The stripe sign refers to a pattern observed in V/Q scans, where a peripheral stripe of normal perfusion surrounds an area of perfusion defect, suggesting that the defect is due to non-embolic causes like pneumonia or chronic obstructive pulmonary disease (COPD) rather than a pulmonary embolism.

Updated on May 18, 2024