?zet Sisterna ?ili, abdominal aortan?n hemen sa??nda retrokrural alanda lokalize dilate lenfatik bir kesedir. Ana g?revi, sindirilmi? ya??n transportudur. Sisterna ?ili, olduk?a de?i?ik g?rünümlere sahiptir. Sisterna ?ilinin kalibrasyonu kontraksiyon dalgalar? ile de?i?ebilir. Otopsilerin %20'si ve lenfanjiyografik ?al??malar?n yakla??k olarak yar?s?nda g?rülür. Sisterna ?ili, geni?lemi? retrokrural lenf nodunu taklit edebilir. Karakteristik yerle?imi, tübüler ?ekli, suya yak?n dansite de?erleri ve takiplerde büyüklü?ünde belirgin de?i?iklik olmamas? ay?r?m?nda yard?mc? bulgulard?r. Bu yaz?da geni? sisterna ?ili saptanan bir olguda ultrasonografi ve manyetik rezonans g?rüntüleme bulgular? sunuldu. Anahtar s?zcükler: Sisterna ?ili, ultrasonografi, manyetik rezonans g?rüntüleme Abstract The cisterna chyli is a dilated lymphatic sac in the retrocrural space usually to the imme-diate right of the abdominal aorta. The main function of this ductal structure is the transport of ingested fat. The cisterna chyli has a highly variable appearance. The caliber of the cisterna chyli may be altered by contraction waves. It is seen in approximately half of lymphangiographic studies and 20% of autopsies. The cisterna chyli can mimic the appearance of an enlarged retrocrural lymph node. Characteristic location, tubular configura-tion, attenuation values closer to water, and lack of significant change in size within a long period of time are helpful findings in differentiation. We herein present the ultrasonography and magnetic resonance imaging features of a case of large cisterna chyli.
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