Fig. 4From: Acute esophageal necrosis with esophagus perforation treated by thoracoscopic subtotal esophagectomy and reconstructive surgery on a secondary esophageal stricture: a case reportFindings of surgical and pathologic specimen (× 20 HE). a Black pigmented esophageal mucosa and perforation of the esophagus. No discoloration in the gastric mucosa. b Necrosis and deciduation of the esophageal mucosa. Gastric mucosa remained intactBack to article page