5q14.3 microdeletion syndrome
MONDO:0016456Mondo
Findings
No curated finding names 5q14.3 microdeletion syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
The newly described 5q14.3 microdeletion syndrome includes severe intellectual deficit with no speech, stereotypic movements and epilepsy.
Definition from the Mondo Disease Ontology (MONDO:0016456), read 2026-09-29. CC BY 4.0.
Features
24 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.
- Autistic behaviorHPOHP:0000729
- Very frequent (80% to 99% of cases)
- Broad foreheadHPOHP:0000337
- Very frequent (80% to 99% of cases)
- Delayed speech and language developmentHPOHP:0000750
- Very frequent (80% to 99% of cases)
- High foreheadHPOHP:0000348
- Very frequent (80% to 99% of cases)
- HypotoniaHPOHP:0001252
- Very frequent (80% to 99% of cases)
- SeizureHPOHP:0001250
- Very frequent (80% to 99% of cases)
- Severe intellectual disabilityHPOHP:0010864
- Very frequent (80% to 99% of cases)
- Abnormal nervous system morphologyHPOHP:0012639
- Frequent (30% to 79% of cases)
- Hypoplasia of the corpus callosumHPOHP:0002079
- Frequent (30% to 79% of cases)
- Motor stereotypyHPOHP:0000733
- Frequent (30% to 79% of cases)
- Short noseHPOHP:0003196
- Frequent (30% to 79% of cases)
- Short philtrumHPOHP:0000322
- Frequent (30% to 79% of cases)
Show the remaining 12
- Upslanted palpebral fissureHPOHP:0000582
- Frequent (30% to 79% of cases)
- VentriculomegalyHPOHP:0002119
- Frequent (30% to 79% of cases)
- Agenesis of cerebellar vermisHPOHP:0002335
- Occasional (5% to 29% of cases)
- Anteverted naresHPOHP:0000463
- Occasional (5% to 29% of cases)
- Deeply set eyeHPOHP:0000490
- Occasional (5% to 29% of cases)
- Feeding difficultiesHPOHP:0011968
- Occasional (5% to 29% of cases)
Where it sits
Other names
2 names
Resolves to: 5q14.3 microdeletion syndrome
- Also called
- Del(5)(q14.3)monosomy 5q14.3