early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome
MONDO:0044646Mondo
Findings
No curated finding names early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Congenital onset · Infantile onset
HPO, annotations 2026-09-02
Features
84 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Absent smooth pursuitHPOHP:0007179
- 8 of 8 reported patients
- Frequent (30% to 79% of cases)
- Delayed speech and language developmentHPOHP:0000750
- 7 of 7 reported patients
- Global developmental delayHPOHP:0001263
- 7 of 7 reported patients
- Frequent (30% to 79% of cases)
- Intellectual disabilityHPOHP:0001249
- 7 of 7 reported patients
- Lower limb spasticityHPOHP:0002061
- 7 of 7 reported patients
- Muscle weaknessHPOHP:0001324
- 7 of 7 reported patients
- Very frequent (80% to 99% of cases)
- Secondary microcephalyHPOHP:0005484
- 8 of 8 reported patients
- Frequent (30% to 79% of cases)
- Brisk reflexesHPOHP:0001348
- 6 of 7 reported patients
- Hypoplasia of the corpus callosumHPOHP:0002079
- 6 of 7 reported patients
- Very frequent (80% to 99% of cases)
- ScoliosisHPOHP:0002650
- 6 of 7 reported patients
- Occasional (5% to 29% of cases)
- SeizureHPOHP:0001250
- 6 of 7 reported patients
- Upper limb spasticityHPOHP:0006986
- 6 of 7 reported patients
Show the remaining 72
- Cerebral cortical atrophyHPOHP:0002120
- Very frequent (80% to 99% of cases)
- Growth delayHPOHP:0001510
- 6 of 8 reported patients
- Very frequent (80% to 99% of cases)
- Skeletal muscle atrophyHPOHP:0003202
- 6 of 8 reported patients
- Very frequent (80% to 99% of cases)
- SpasticityHPOHP:0001257
- Very frequent (80% to 99% of cases)
- Developmental regressionHPOHP:0002376
- 6 of 8 reported patients
- Occasional (5% to 29% of cases)
- HypotoniaHPOHP:0001252
Genes
2 genes
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- TBCDHGNC:11581
- Definitive · ClinGen · Autosomal recessive · 2025
- Definitive · G2P · Autosomal recessive · 2017
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2022
- Strong · PanelApp Australia · Autosomal recessive · 2025
- Supportive · Orphanet · Autosomal recessive · 2021
- TBCEHGNC:11582
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2020
Where it sits
Other names
3 names
Resolves to: early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome
- Also called
- encephalopathy, progressive, early-onset, with brain atrophy and thin corpus callosumencephalopathy, progressive, early-onset, with brain atrophy and thin corpus callosum; PEBATPEBAT