title: Double esophageal duplication cysts, with ectopic gastric mucosa: a case report.
abstract: Esophageal duplication cyst (EDC) is a congenital malformation of the posterior primitive foregut, which mainly occurs in the thoracic esophagus. Here, we describe a 3-year-old Han Chinese boy afflicted with intermittent fever of acute onset and dry cough. Thoracic computed tomography revealed an 10 cm × 5.4 cm × 5.8 cm oval-shaped, cyst-like tumor located in the extrapleural space, extending along the right paravertebral gutter and compressing the trachea forward. An additional small-sized, oval-shaped cyst was identified in the posterior mediastinum, between the esophagus and the spinal column, at the T1 level. During open thoracotomy, under general anesthesia, an opaque, thick-walled, esophageal cyst was revealed not to be in communication with the esophageal lumen or the trachea. This cyst was subsequently resected in an en bloc manner. The small (1-cm) esophageal cyst was left untreated based on a "wait-and-see" policy. Histological analysis showed that the resected cyst was walled by hyperplastic, fibrous tissues and locally lined with gastric mucosa inherent glands. This finding was consistent with a diagnosis of EDC, with ectopic gastric mucosa. The respiratory tract symptoms resolved immediately after the operation. Computed tomography obtained at the 6-month follow-up showed that no disease, residual or recurrence, was present after the resection of the large-sized cyst, and the small-sized cyst remained unchanged in size.
authors.affiliation: Department of Thoracic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun 130021, China. doctorcyb@163.com.
authors.forename: Zhefeng
authors.initials: Z
authors.lastname: Zhang
authors.forename: Feng
authors.initials: F
authors.lastname: Jin
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Shulian
authors.initials: S
authors.lastname: Tan
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Tian
authors.forename: Youbin
authors.initials: Y
authors.lastname: Cui
mesh_terms: D002675:Child, Preschool; D004934:Esophageal Cyst / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005753:Gastric Mucosa / Q000473:pathology*; D006801:Humans; D008297:Male; D008476:Mediastinal Cyst / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013908:Thoracotomy; D014057:Tomography, X-Ray Computed