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Start free with EleplanMitochondrial trifunctional protein deficiency
ORPHA:746Disease
Also called TFP deficiency · TFPD
What it is
A rare disorder of fatty acid oxidation characterized by a wide clinical spectrum ranging from severe neonatal manifestations including cardiomyopathy, hypoglycemia, metabolic acidosis, skeletal myopathy and neuropathy, liver disease and death to a mild phenotype with peripheral polyneuropathy, episodic rhabdomyolysis and pigmentary retinopathy..
Key facts
- Prevalence
- 1-9 / 100 000 (Europe)
- Age of onset
- Infancy, Neonatal
- Inheritance
- Autosomal recessive
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
Common30–79%
20- Cardiomyopathy
- Chronic hepatic failure
- Congestive heart failure
- Decreased patellar reflex
- Difficulty climbing stairs
- Diffuse hepatic steatosis
- Failure to thrive in infancy
- Feeding difficulties in infancy
- Hypocalcemia
- Hypoketotic hypoglycemia
- Hypotonia
- Left ventricular hypertrophy
- Lethargy
- Lower limb muscle weakness
- Muscle spasm
- Muscle weakness
- Peripheral neuropathy
- Poor suck
- Progressive distal muscle weakness
- Skeletal myopathy
Sometimes5–29%
19- Arrhythmia
- Babinski sign
- Cholestasis
- Coma
- Equinovarus deformity
- Equinus calcaneus
- Frequent falls
- Generalized muscle weakness
and 11 more in this range
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Genes
ICD-10 codes
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.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
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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