https://www.selleckchem.com/pr....oducts/guanosine.htm
BACKGROUND AND OBJECTIVES Marking positive lymph nodes (LNs) before neoadjuvant chemotherapy (NAC) may improve the accuracy of sentinel lymph node biopsy (SLN. The aim of this study was to determine the feasibility of marking LNs with 4% carbon microparticle suspension (CMS) before NAC and to evaluate if this technique would improve the SLNB identification rate. METHODS A prospective study of patients with cT1-T4, cN1-N2 breast cancer who underwent US-guided fine-needle aspiration biopsy (FNA of suspected LNs and concomitant marki