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Fig. 1 | BMC Gastroenterology

Fig. 1

From: Endoscopic resections for superficial esophageal squamous cell epithelial neoplasia: focus on histological discrepancies between biopsy and resected specimens

Fig. 1

A patient who was diagnosed as indefinite for neoplasia on biopsy and subsequently upgraded to HGIN after resection. a A brownish area is observed in the middle esophagus; b the lesion is flat and reddish under white light endoscopy; c map-like unstained area is observed after 1% iodine spraying but negative for pink color sign. d One biopsy is taken from unstained area and is diagnosed as indefinite for neoplasia; e magnifying endoscopy shows type B1 IPCL; and f the lesion is diagnosed as HGIN after resection

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