Thisrare conditionis caused byextrinsiccompression, given the low abnormalinsertion of medianarcuateligamentorfibrousbands and ganglionperiaortitis tissue from the celiac plexus. The ligamentiscomposed oftendonmedialedgesof the twopolesof the diaphragmwhichmeetin the median planeto forman archbefore the aorta.
