Figure 3

Representative example canine tumor displaying in vivo PPIX fluorescence during pulmonary resection: Canine 5 was a 12-year-old male, Weimaraner that presented with a 12 cm papillary carcinoma of the right cranial lobe (a). During pulmonary resection, the tumor displayed observable levels of fluorescence, with a TBR of 2.2 (b).