Fig. 5
From: Laparoscopic resection of an intra-abdominal esophageal duplication cyst in the ileum: a case report
Histopathological findings. The cystic epithelium appears as stratified squamous epithelium (hematoxylin–eosin [HE], ×100) (a). The esophageal glands are observed in the submucosa, which has mucous glands and ducts (HE, ×100) (b). The muscular layer has a two-layer structure with inner circular and outer longitudinal muscle layers (c). In addition, nerves and ganglion cells (Auerbach plexus, yellow arrow) are found between the two layers (HE, ×100)