Sotos syndrome
Findings
No curated finding names Sotos syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Sotos syndrome is a rare multisystemic genetic disorder characterized by a typical facial appearance, overgrowth of the body in early life with macrocephaly, and mild to severe intellectual disability.
Definition from the Mondo Disease Ontology (MONDO:0019349), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal dominant inheritance
- Onset and course
- Congenital onset · Infantile onset · Neonatal onset · Fetal onset · Childhood onset
HPO, annotations 2026-09-02
Features
180 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 speechHPOHP:0001344
- 1 of 1 reported patient
- Aggressive behaviorHPOHP:0000718
- 1 of 1 reported patient
- Occasional (5% to 29% of cases)
- Alopecia of scalpHPOHP:0002293
- 1 of 1 reported patient
- AnemiaHPOHP:0001903
- 1 of 1 reported patient
- Anteverted naresHPOHP:0000463
- 1 of 1 reported patient
- ApneaHPOHP:0002104
- 1 of 1 reported patient
- Arachnoid cystHPOHP:0100702
Show the remaining 168
- Cognitive impairmentHPOHP:0100543
- 1 of 1 reported patient
- CryptorchidismHPOHP:0000028
- 2 of 2 reported patients
- Very rare (1% to 4% of cases)
- CyanosisHPOHP:0000961
- 1 of 1 reported patient
- Decreased fetal movementHPOHP:0001558
- 1 of 1 reported patient
- Delayed ability to walkHPOHP:0031936
- 1 of 1 reported patient
- Dental crowdingHPOHP:0000678
- 8 of 8 reported patients
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.
- NSD1HGNC:14234
- Definitive · Ambry Genetics · Autosomal dominant · 2016
- Definitive · ClinGen · Autosomal dominant · 2018
- Definitive · G2P · Autosomal dominant · 2023
- Strong · Genomics England PanelApp · Autosomal dominant · 2021
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal dominant · 2023
- Strong · PanelApp Australia · Autosomal dominant · 2025
- Supportive · Orphanet · Autosomal dominant · 2021
- APC2HGNC:24036
- Supportive · Orphanet · Autosomal dominant · 2021
Where it sits
Other names
8 names
Resolves to: Sotos syndrome
- Also called
- cerebral gigantismcerebral gigantism syndromechromosome 5q35 deletion syndromeNSD1 Sotos syndromeSotos syndrome 1Sotos syndrome caused by mutation in NSD1Sotos syndrome type 1Sotos' syndrome