[Extra-organic lymphatic vessels and regional lymph nodes of the kidneys in dogs].

An anatomical investigation of extraorganic lymphatic vessels and regional renal lymph nodes has been performed in 70 dogs. The regional lymph nodes in the right kidney are stated to be quantitatively constant, as well as cranial and caudal lateroaortal lymph nodes in the left kidney in regard to the middle left lateroaortal nodes, that get lymph from the left kidney parenchyma. One middle left lateroaortal lymph node is found in 47 animals examined, two lymph nodes--in 17 animals. In 6 cases a lymphatic vessel, that gets lymph from the renal parenchyma and independently runs into the cistern of the thoracic duct is found for the first time. The variant revealed is an exception from the rule known in lymphology: lymph in its way from periphery to the central collector runs, at least, through one lymph node.