Spastic paraparesis-cataracts-speech…

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Spastic paraparesis-cataracts-speech delay syndrome

ORPHA:615938Clinical syndrome

Also called Fatty acyl-CoA reductase 1 superactivity

What it is

A rare disorder of fatty acid biosynthesis characterized by spastic paraparesis, bilateral congenital/juvenile cataracts, gross motor developmental delay, speech delay and truncal hypotonia. Seizures in infancy can also be observed. Patients have elevated levels of ether lipids including plasmalogen. Majority of the affected individuals have normal brain imaging and normal growth. No microcephaly or dysmorphic features were reported.

Key facts

Inheritance
Autosomal dominant
Classified as
Clinical syndrome

Recorded for the broader condition

Prevalence
1-9 / 100 000 (Norway)Autosomal dominant complex spastic paraplegia

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.

Gene

FAR1Disease-causing germline mutation(s)

ICD-10 codes

E71.3filed under a broader ICD-10 category — shared with 27 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.

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

MONDO 0036212OMIM 619338UMLS C5543440

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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