True myelomeningocele

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True myelomeningocele

ORPHA:645383Clinical subtype

Also called True MMC

What it is

A rare open neural tube defect characterized by no other malformation than myelomeningocele (spina bifida with a neural placode exposed at the top of a non-epidermised dysplasic meninges sac and Chiari II malformation).

Key facts

Inheritance
Unknown
Classified as
Clinical subtype

Recorded for the broader condition

Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.

Cross-references

MONDO 0957453UMLS C5816713

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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