pubmed-article:872509 | pubmed:abstractText | Hilar and mediastinal node enlargement may be a manifestation of the spread of renal tumours. However, the author believes the spread to these nodes may occur either via the upper para-aortic nodes or directly by way of lymphatic vessels from the kidneys by-passing the upper abdominal nodes. It seems that in some cases the hilar node may even be acting as a regional lymph node for the kidney. Thus an enlarged hilar node and especially a lower right hilar node may be the presenting feature of a renal tumour. | lld:pubmed |