Syndrome de délétion 22q11.2
Synonymes : 22q11DS · CATCH 22 · Microdélétion 22q11.2 · Monosomie 22q11 · Syndrome cardio-facial de Cayler · Syndrome de DiGeorge
Définition clinique
Anomalie chromosomique congénitale rare, caractérisée le plus souvent par des malformations cardiaques et palatines, une dysmorphie faciale, un retard du développement et une immunodéficience.
🩺 Symptômes & manifestations cliniques
131 phénotypes HPO annotés Orphanet
🔴 Très fréquent (99-80%) — 24
- Upslanted palpebral fissure
- Abnormality of the pharynx
- Hypoplasia of the thymus
- Hypotonia
- Hypernasal speech
- Ventricular septal defect
- Atrial septal defect
- Tetralogy of Fallot
- Abnormal pulmonary valve morphology
- Truncus arteriosus
- Abnormal facial shape
- Aphasia
- Platybasia
- Immunodeficiency
- Abnormal aortic arch morphology
- Abnormal cardiovascular system morphology
- Cleft palate
- Epicanthus
- Low-set ears
- Conductive hearing impairment
- Bulbous nose
- Prominent nasal bridge
- Wide nasal bridge
- Telecanthus
🟠 Fréquent (79-30%) — 35
- Abnormality of T cell physiology
- Renal hypoplasia
- Abnormality of the dentition
- Malar flattening
- Long face
- Long philtrum
- Hearing impairment
- Small earlobe
- Chronic otitis media
- Overfolded helix
- Short neck
- Abnormal eyelid morphology
- Ptosis
- Posterior embryotoxon
- Carious teeth
- Anxiety
- Hypoparathyroidism
- Abnormal skull morphology
- Seborrheic dermatitis
- Acne
- Arachnodactyly
- Intellectual disability, mild
- Global developmental delay
- Tetany
- Specific learning disability
- Constipation
- Meningocele
- Scoliosis
- Hypocalcemia
- Myalgia
- Short stature
- Attention deficit hyperactivity disorder
- Corneal neovascularization
- Anorectal anomaly
- Abnormality of the tonsils
🟡 Occasionnel / autres (72) ↓
- Joint hypermobility(Occasionel (29-5%))
- Inguinal hernia(Occasionel (29-5%))
- Cryptorchidism(Occasionel (29-5%))
- Hypospadias(Occasionel (29-5%))
- Vesicoureteral reflux(Occasionel (29-5%))
- Polycystic kidney dysplasia(Occasionel (29-5%))
- Abnormality of the uterus(Occasionel (29-5%))
- Narrow mouth(Occasionel (29-5%))
- Hydrocephalus(Occasionel (29-5%))
- Microcephaly(Occasionel (29-5%))
- Turricephaly(Occasionel (29-5%))
- Hypertelorism(Occasionel (29-5%))
- Short philtrum(Occasionel (29-5%))
- Micrognathia(Occasionel (29-5%))
- Choanal atresia(Occasionel (29-5%))
- Strabismus(Occasionel (29-5%))
- Downslanted palpebral fissures(Occasionel (29-5%))
- Glaucoma(Occasionel (29-5%))
- Cataract(Occasionel (29-5%))
- Microphthalmia(Occasionel (29-5%))
- Optic atrophy(Occasionel (29-5%))
- Abnormality of dental enamel(Occasionel (29-5%))
- Atypical behavior(Occasionel (29-5%))
- Depression(Occasionel (29-5%))
- Autism(Occasionel (29-5%))
- Abnormal thorax morphology(Occasionel (29-5%))
- Hypothyroidism(Occasionel (29-5%))
- Hyperthyroidism(Occasionel (29-5%))
- Purpura(Occasionel (29-5%))
- Hypopigmented skin patches(Occasionel (29-5%))
- Cholelithiasis(Occasionel (29-5%))
- Retinal arteriolar tortuosity(Occasionel (29-5%))
- Hand polydactyly(Occasionel (29-5%))
- Intellectual disability(Occasionel (29-5%))
- Seizure(Occasionel (29-5%))
- Parkinsonism(Occasionel (29-5%))
- Arthritis(Occasionel (29-5%))
- Failure to thrive(Occasionel (29-5%))
- Intrauterine growth retardation(Occasionel (29-5%))
- Obesity(Occasionel (29-5%))
- Umbilical hernia(Occasionel (29-5%))
- Polyhydramnios(Occasionel (29-5%))
- Laryngomalacia(Occasionel (29-5%))
- Patent ductus arteriosus(Occasionel (29-5%))
- Abnormal aortic valve morphology(Occasionel (29-5%))
- Splenomegaly(Occasionel (29-5%))
- Talipes equinovarus(Occasionel (29-5%))
- Foot polydactyly(Occasionel (29-5%))
- Abnormality of thrombocytes(Occasionel (29-5%))
- Thrombocytopenia(Occasionel (29-5%))
- Gastroesophageal reflux(Occasionel (29-5%))
- Anal atresia(Occasionel (29-5%))
- Asthma(Occasionel (29-5%))
- Abnormal lung lobation(Occasionel (29-5%))
- Arrhinencephaly(Occasionel (29-5%))
- Gastrointestinal hemorrhage(Occasionel (29-5%))
- Aganglionic megacolon(Occasionel (29-5%))
- Spina bifida(Occasionel (29-5%))
- Intestinal malrotation(Occasionel (29-5%))
- Bowel incontinence(Occasionel (29-5%))
- Varicose veins(Occasionel (29-5%))
- Autoimmunity(Occasionel (29-5%))
- Patellar dislocation(Occasionel (29-5%))
- Multiple renal cysts(Occasionel (29-5%))
- Chronic pulmonary obstruction(Occasionel (29-5%))
- Bipolar affective disorder(Occasionel (29-5%))
- Feeding difficulties in infancy(Occasionel (29-5%))
- Multiple suture craniosynostosis(Occasionel (29-5%))
- Tricuspid atresia(Occasionel (29-5%))
- Hypertensive crisis(Occasionel (29-5%))
- Atelectasis(Occasionel (29-5%))
- Schizophrenia(Occasionel (29-5%))
🔀 Diagnostic différentiel
Maladies rares qui partagent le plus de phénotypes discriminants avec Syndrome de délétion 22q11.2. Calcul automatique sur les annotations HPO/Orphanet — à confronter au tableau clinique réel.
- 53%
Syndrome de Koolen-De Vries
ORPHA:96169 · 5/8 phénotypes en commun
- 34%
Syndrome de duplication 22q11.2
ORPHA:1727 · 5/8 phénotypes en commun
- 47%
Syndrome de malformations cérébrales-cardiopathie congénitale-polydactylie post-axiale
ORPHA:75389 · 4/8 phénotypes en commun
- 44%
Syndrome de Thakker-Donnai
ORPHA:1780 · 4/8 phénotypes en commun
- 41%
Syndrome 3C
ORPHA:7 · 4/8 phénotypes en commun
- 38%
Trisomie 21
ORPHA:870 · 4/8 phénotypes en commun
🔬 Examens & investigations
📋 PNDS — recommandations officielles françaises
Le Protocole National de Diagnostic et Soins est le référentiel HAS pour la prise en charge d'une maladie rare en France. Environ 300 maladies en disposent (plus rare que la maladie elle-même → plus de chances qu'il n'existe pas).
🏥 Centres experts
Liste Orphanet officielle des centres experts pour cette maladie spécifique (CRMR / CCMR) — coordonnées et coordinateurs.
📍 Trouver un spécialiste près de chez vous
Entrez votre ville ou code postal pour filtrer l'annuaire MonRhumato et localiser les centres experts les plus proches.
🧬 Gènes associés & variants
TBX122q11.21Disease-causing germline mutation(s) inAssessed
TBX122q11.21Role in the phenotype ofAssessed
ARVCF22q11.21ClinVar : 828 variantsRole in the phenotype ofAssessed
GP1BB22q11.21Role in the phenotype ofAssessed
UFD122q11.21Role in the phenotype ofAssessed
COMT22q11.21Role in the phenotype ofAssessed
HIRA22q11.21Role in the phenotype ofAssessed
JMJD1C10q21.3Modifying germline mutation inAssessed
RREB16p24.3Modifying germline mutation inAssessed
SEC24C10q22.2Modifying germline mutation inAssessed
Codifications validées (10) ↓
- GARD:10299
- ICD-10:D82.1
- ICD-11:LD44.N0
- MONDO:0018923
- MeSH:D004062
- MedDRA:10012979
- OMIM:125520
- OMIM:188400
- OMIM:192430
- UMLS:C0012236