Isolated esophageal duplication cyst

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Isolated esophageal duplication cyst

ORPHA:100047Morphological anomaly

What it is

A rare, congenital, non-syndromic esophageal malformation characterized by tubular or spherical cystic masses that have a double layer of surrounding smooth muscle lined with squamous or enteric epithelium, and are continuous or contiguous to the esophagus. The cyst is typically distally located and may or may not communicate with the esophageal lumen. Most become symptomatic presenting with a wide range of symptoms including dysphagia, non-productive cough, chest pain or failure to thrive. Others like palpitations due cardiac arrhythmia, thoracic back pain, and fever due to mediastinitis, have also been reported.

Key facts

Classified as
Morphological anomaly

ICD-10 codes

Q39.8filed under a broader ICD-10 category — shared with 1 other rare disease

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MONDO 0015050UMLS C4303524

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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