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CT thorax arterial phase shows pulmonary emboli in the right lateral and posterior basal segmental arteries. The lateral basal segmental artery is completely occluded and the posterior basal segmental artery nearly occluded. There is pulmonary infarction of the right lateral and posterior basal segments.
Background findings of centrilobular/subpleural emphysema and congestive cardiac failure with interstitial pulmonary oedema and bilateral pleural effusion.