What is the fine-grained topic of the following text: Within 20 minutes, the first one to three LN, accumulating ICG and so appearing in “real time” as shining fluorescent spot was defined as SLN(s), classified, removed, sent to the pathology and evaluated with H&E staining. Only return the topic.
Identification and Evaluation of Sentinel Lymph Node(s) using Fluorescent Imaging