Isolated rectal duplication

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Isolated rectal duplication

ORPHA:171220Morphological anomaly

What it is

A rare, congenital, intestinal malformation morphological anomaly characterized by an egg-like, cystic, mucus-filled mass, composed of intestinal mucosal lining and smooth muscle tissue. Commonly it presents in childhood with symptoms of recurrent urinary tract infections, gastroenteritis, obstruction, perianal sepsis and rectal bleeding. Drainage of mucus or pus from the anus is also a typical presenting sign. The majority are found in the retro-rectal space where they communicate with, or are contiguous to, the rectum.

Key facts

Classified as
Morphological anomaly

ICD-10 codes

Q43.4filed under a broader ICD-10 category — shared with 4 other rare diseases

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 0015734UMLS C4511483

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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