Clinical relevance of fluorodeoxyglucose positron emission tomography/computed tomography and magnifying endoscopy with narrow band imaging in decision-making regarding the treatment strategy for esophageal squamous cell carcinoma

Figure 1 Overall survival of 82 patients with superficial esophageal squamous cell carcinoma stratified by fluorodeoxyglucose uptake and/or the findings of magnifying endoscopy with narrow band imaging. A: Positive Fluorodeoxyglucose (FDG) uptake is an indicator of T1b SM2-3; B: Positive FDG uptake is an indicator for esophagectomy or definitive chemoradiotherapy (CRT), that is, T1a muscularis mucosae with lymphovascular invasion and T1b-SM; C: The combined finding of type B2 and B3 and positive FDG uptake defined as an indicator for esophagectomy or definitive CRT. PET: Positron emission tomography; MM: Muscularis mucosae.