Pathology Report: Presacral Noncommunicating Enteric Duplication Cyst.

Area of Science:

• Gastroenterology
• Congenital Malformations
• Surgical Pathology

Background:

• Enteric duplication cysts are rare congenital anomalies of the gastrointestinal (GI) tract.
• These cysts, lined by GI epithelium, can occur along the alimentary tract and may have associated malformations.
• Malignant transformation is a rare but reported complication.

Observation:

• A 52-year-old woman presented with a presacral cystic mass initially suspected to be of neural origin.
• The mass required repeated drainage procedures.
• Surgical resection was performed.

Findings:

• The resected lesion was a noncommunicating enteric duplication cyst.
• Histopathology revealed heterotopic tissues including ciliated bronchial epithelium, squamous and transitional epithelia, and gastric and pancreatic tissue.
• A focal, low-grade intestinal adenoma was identified; however, malignancy was not detected.

Implications:

• This case represents the sixth reported instance of a noncommunicating enteric duplication cyst in the English medical literature.
• The presence of heterotopic tissues and adenoma underscores the complex nature of these cysts.
• Accurate diagnosis and surgical management are crucial for these rare entities.