Experimental Study of Sentinel Lymph Node Identification in Canine Oral Tumor Using Computed Tomography Lymphography

Abstract

The aim of this experimental study was to perform computed tomography lymphography (CTLG) of the head and neck in dogs. Five clinically healthy adult beagles and five cases were included in this study. In the majority of dogs, the sentinel lymph node (SLN) was the mandibular lymph node of the ipsilateral side of the injection site. However, in the group that received injections on the rostral mandibular lymph node, a case in which the SLN was the mandibular lymph node of both the ipsilateral and contralateral sides was confirmed. Furthermore, there was a case in which the medial retropharyngeal lymph node was the SLN. In this study, we confirmed that there were individual differences in the SLN of the head and neck in dogs. Therefore, CTLG can be considered highly beneficial in the preoperative examination of dogs with oral tumors.