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Angiogram of the right L3 segmental artery (L3) demonstrates prominent collateral vessels (short black arrows) in the region of the right L2 pedicle. The distal right L2 segmental (L2) and radicular (long black arrow) arteries are irregular and attenuated. The ostium of the right L2 segmental lumbar artery could not be found and was presumably occluded.
