Foregut duplication cyst

Foregut duplication cyst is an uncommon benign anomaly of the foregut.

General

• Uncommon.
• Benign.
• Posterior mediastinum - usually thoracic.

Microscopic

Features:

• Varied lining epithelium - may be one or combination of the following:
  • Respiratory-type epithelium.
  • Squamous epithelium.
  • Cuboidal epithelium.
• Negative for atypia.

Sign out

Esophagus (Submitted as “Esophageal Cyst”), Excision: 
- Compatible with cyst wall lined by respiratory-type epithelium. 
- NEGATIVE for malignancy. 

See also

• Mediastinum.
• Esophagus.
• Gastrointestinal pathology.
• Pericardial cyst.
• Foregut primary carcinomas.