Isolated tubular duplication of the…

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Isolated tubular duplication of the esophagus

ORPHA:100048Morphological anomaly

What it is

A rare, non-syndromic, congenital esophageal malformation characterized by a second structure with individual lumen and stratified squamous mucosa and muscularis mucosa lying within or adjacent to the true esophagus causing dysphagia, nausea, vomiting, retrosternal pain and respiratory problems (stridor and recurrent pneumonia) and usually presenting in childhood.

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 0015051UMLS C4274729

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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