Fig. 2From: A long-surviving patient with advanced esophageal basaloid squamous cell carcinoma treated only with radiotherapy: case report and literature reviewUpper gastrointestinal endoscopy: Macroscopic type 3 advanced esophageal cancer, which appears to be nearly circumferential, can be seen 22 cm from the gums. The tumor was speculated to have developed and then extended into the submucosal layerBack to article page