Superficial Esophageal Cancer with Deep Submucosal Invasion Misdiagnosed as a Subepithelial Tumor

ABSTRACT

Endoscopic ultrasonography (EUS) is commonly used to detect the depth of cancer invasion in the preoperative stage. Intrapapillary capillary loop (IPCL) patterns observed in magnification endoscopy with narrow band image are also known to well demonstrate cancer invasion depth. Here, we report a case of superficial esophageal cancer with massive submucosal invasion, which presented as a superficial esophageal cancer confined to the mucosal layer and with a coincidental hypoechoic submucosal tumor under EUS and IPCL evaluation.