ゴールデンハムスターの舌におけるリンパ管の走行

抄録

The distribution of lymphatic vessels are clinically very important for the understanding of the route of cancer metastasis. However, the pattern of lymphatic distributions in the muscular bundles of the tongue is unknown. Lymphatics in tongues of the golden hamster, mouse and rat were observed by light microscopy using 5’-Nase staining. The tongue was divided into three sections; the tip, the body and the root. There were three routes of lymphatics in the tongue, namely, a concomitant collecting lymphatic running concomitantly with the deep lingual artery of the tongue, a collecting lymphatic in the septum of the tongue and a collecting lymphatic running to the oral floor along the genioglossus muscle bundles. The distribution of lymphatics in the tongue was basically the same in the golden hamster, mouse and rat. However, the distribution of collecting lymphatics in the lingual septum was less developed in the mouse and rat whose transverse muscles of the tongue were poorly developed. From clinicopathological studies of human tongue cancer, it is presumed that there is the same distribution of lymphatics in human tongue as in rodents’.