Multiple carboxylase deficiency

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Multiple carboxylase deficiency

ORPHA:148Clinical group

Also called MCD

What it is

A group of inborn errors of biotin metabolism characterized by reduced activities of biotin-dependent enzymes resulting in a wide spectrum of symptoms, including feeding difficulty, breathing difficulties, lethargy, seizures, skin rash, alopecia, and developmental delay. This group includes biotinidase deficiency and biotin holocarboxylase synthetase deficiency.

Key facts

Age of onset
Infancy, Neonatal
Inheritance
Autosomal recessive
Classified as
Clinical group

Cross-references

GARD 3824MEDDRA 10028176MESH D009100MONDO 0015454MONDO 15454UMLS C0026755

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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