Chromosome 1q21.1 deletion syndrome
- Synonyms
- 1q21.1 Deletion; 1q21.1 recurrent microdeletion; CHROMOSOME 1q21.1 DELETION SYNDROME, 1.35-MB
- Modes of inheritance
- Autosomal dominant inheritance (Orphanet)
Not genetically inherited (Orphanet)
Summary
Excerpted from the GeneReview:- Full text of GeneReview (by section):
- Summary
- Diagnosis
- Clinical Characteristics
- Genetically Related (Allelic) Disorders
- Differential Diagnosis
- Management
- Genetic Counseling
- Resources
- Molecular Genetics
- Chapter Notes
- References
- Authors:
- Rose Guo
- Chad R Haldeman-Englert
- view full author information
Available tests
Check Related conditions for additional relevant tests.
Clinical tests (17 available)
Cytogenetics Tests
Clinical features
Help- Abnormality of head or neck
- Anteverted nares
Anteverted nares
- MedGen UID: 326648
- Concept ID: C1840077
- Finding: Finding
Abnormality of head or neck
- Bifid uvula
Bifid uvula
- MedGen UID: 1646931
- Concept ID: C4551488
- Finding: Congenital Abnormality
Abnormality of head or neck
- Bulbous nose
Bulbous nose
- MedGen UID: 66013
- Concept ID: C0240543
- Finding: Finding
Abnormality of head or neck
- Depressed nasal bridge
Depressed nasal bridge
- MedGen UID: 373112
- Concept ID: C1836542
- Finding: Finding
Abnormality of head or neck
- Epicanthus
Epicanthus
- MedGen UID: 151862
- Concept ID: C0678230
- Finding: Congenital Abnormality
Abnormality of head or neck
- High palate
High palate
- MedGen UID: 66814
- Concept ID: C0240635
- Finding: Congenital Abnormality
Abnormality of head or neck
- Highly arched eyebrow
Highly arched eyebrow
- MedGen UID: 358357
- Concept ID: C1868571
- Finding: Finding
Abnormality of head or neck
- Long philtrum
Long philtrum
- MedGen UID: 351278
- Concept ID: C1865014
- Finding: Finding
Abnormality of head or neck
- Low hanging columella
Low hanging columella
- MedGen UID: 344656
- Concept ID: C1856119
- Finding: Finding
Abnormality of head or neck
- Mandibular prognathia
Mandibular prognathia
- MedGen UID: 98316
- Concept ID: C0399526
- Finding: Finding
Abnormality of head or neck
- Microdontia
Microdontia
- MedGen UID: 66008
- Concept ID: C0240340
- Finding: Congenital Abnormality
Abnormality of head or neck
- Pointed chin
Pointed chin
- MedGen UID: 336193
- Concept ID: C1844505
- Finding: Finding
Abnormality of head or neck
- Prominent forehead
Prominent forehead
- MedGen UID: 373291
- Concept ID: C1837260
- Finding: Finding
Abnormality of head or neck
- Prominent nasal bridge
Prominent nasal bridge
- MedGen UID: 343051
- Concept ID: C1854113
- Finding: Finding
Abnormality of head or neck
- Prominent nose
Prominent nose
- MedGen UID: 98423
- Concept ID: C0426415
- Finding: Finding
Abnormality of head or neck
- Round face
Round face
- MedGen UID: 116087
- Concept ID: C0239479
- Finding: Finding
Abnormality of head or neck
- Short neck
Short neck
- MedGen UID: 99267
- Concept ID: C0521525
- Finding: Finding
Abnormality of head or neck
- Short palpebral fissure
Short palpebral fissure
- MedGen UID: 98067
- Concept ID: C0423112
- Finding: Finding
Abnormality of head or neck
- Smooth philtrum
Smooth philtrum
- MedGen UID: 222980
- Concept ID: C1142533
- Finding: Finding
Abnormality of head or neck
- Thick lower lip vermilion
Thick lower lip vermilion
- MedGen UID: 326567
- Concept ID: C1839739
- Finding: Finding
Abnormality of head or neck
- Thin upper lip vermilion
Thin upper lip vermilion
- MedGen UID: 355352
- Concept ID: C1865017
- Finding: Finding
Abnormality of head or neck
- Thin vermilion border
Thin vermilion border
- MedGen UID: 108294
- Concept ID: C0578038
- Finding: Finding
Abnormality of head or neck
- Triangular face
Triangular face
- MedGen UID: 324383
- Concept ID: C1835884
- Finding: Finding
Abnormality of head or neck
- Upslanted palpebral fissure
Upslanted palpebral fissure
- MedGen UID: 98390
- Concept ID: C0423109
- Finding: Finding
Abnormality of head or neck
- Widely spaced teeth
Widely spaced teeth
- MedGen UID: 337093
- Concept ID: C1844813
- Finding: Finding
Abnormality of head or neck
- Anteverted nares
- Abnormality of limbs
- Brachydactyly
Brachydactyly
- MedGen UID: 67454
- Concept ID: C0221357
- Finding: Congenital Abnormality
Abnormality of limbs
- Broad hallux
Broad hallux
- MedGen UID: 401165
- Concept ID: C1867131
- Finding: Finding
Abnormality of limbs
- Broad thumb
Broad thumb
- MedGen UID: 140880
- Concept ID: C0426891
- Finding: Finding
Abnormality of limbs
- Clinodactyly of the 5th finger
Clinodactyly of the 5th finger
- MedGen UID: 340456
- Concept ID: C1850049
- Finding: Congenital Abnormality
Abnormality of limbs
- Duplication of thumb phalanx
Duplication of thumb phalanx
- MedGen UID: 892306
- Concept ID: C4021370
- Finding: Anatomical Abnormality
Abnormality of limbs
- Mesoaxial foot polydactyly
Mesoaxial foot polydactyly
- MedGen UID: 866976
- Concept ID: C4021333
- Finding: Congenital Abnormality
Abnormality of limbs
- Overlapping toe
Overlapping toe
- MedGen UID: 182531
- Concept ID: C0920299
- Finding: Anatomical Abnormality
Abnormality of limbs
- Pes planus
Pes planus
- MedGen UID: 42034
- Concept ID: C0016202
- Finding: Anatomical Abnormality
Abnormality of limbs
- Short distal phalanx of finger
Short distal phalanx of finger
- MedGen UID: 326590
- Concept ID: C1839829
- Finding: Finding
Abnormality of limbs
- Single transverse palmar crease
Single transverse palmar crease
- MedGen UID: 96108
- Concept ID: C0424731
- Finding: Finding
Abnormality of limbs
- Talipes
Talipes
- MedGen UID: 220976
- Concept ID: C1301937
- Finding: Congenital Abnormality
Abnormality of limbs
- Brachydactyly
- Abnormality of the cardiovascular system
- Aortic regurgitation
Aortic regurgitation
- MedGen UID: 8153
- Concept ID: C0003504
- Finding: Disease or Syndrome
Abnormality of the cardiovascular system
- Ascending tubular aorta aneurysm
Ascending tubular aorta aneurysm
- MedGen UID: 163631
- Concept ID: C0856747
- Finding: Anatomical Abnormality
Abnormality of the cardiovascular system
- Atrial septal defect
Atrial septal defect
- MedGen UID: 6753
- Concept ID: C0018817
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Bicuspid aortic valve
Bicuspid aortic valve
- MedGen UID: 57436
- Concept ID: C0149630
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Coarctation of aorta
Coarctation of aorta
- MedGen UID: 1617
- Concept ID: C0003492
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Muscular ventricular septal defect
Muscular ventricular septal defect
- MedGen UID: 473253
- Concept ID: C0685707
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Patent ductus arteriosus
Patent ductus arteriosus
- MedGen UID: 4415
- Concept ID: C0013274
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Perimembranous ventricular septal defect
Perimembranous ventricular septal defect
- MedGen UID: 87490
- Concept ID: C0344925
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Transposition of the great arteries
Transposition of the great arteries
- MedGen UID: 21245
- Concept ID: C0040761
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Truncus arteriosus
Truncus arteriosus
- MedGen UID: 892804
- Concept ID: C4020867
- Finding: Congenital Abnormality
Abnormality of the cardiovascular system
- Aortic regurgitation
- Abnormality of the eye
- Cataract
Cataract
- MedGen UID: 39462
- Concept ID: C0086543
- Finding: Disease or Syndrome
Abnormality of the eye
- Deeply set eye
Deeply set eye
- MedGen UID: 473112
- Concept ID: C0423224
- Finding: Finding
Abnormality of the eye
- Duane retraction syndrome
Duane retraction syndrome
- MedGen UID: 4413
- Concept ID: C0013261
- Finding: Disease or Syndrome
Abnormality of the eye
- Esodeviation
Esodeviation
- MedGen UID: 1641033
- Concept ID: C4551734
- Finding: Disease or Syndrome
Abnormality of the eye
- Exophoria
Exophoria
- MedGen UID: 101827
- Concept ID: C0152217
- Finding: Disease or Syndrome
Abnormality of the eye
- Hypermetropia
Hypermetropia
- MedGen UID: 43780
- Concept ID: C0020490
- Finding: Disease or Syndrome
Abnormality of the eye
- Hypertelorism
Hypertelorism
- MedGen UID: 9373
- Concept ID: C0020534
- Finding: Finding
Abnormality of the eye
- Hypotelorism
Hypotelorism
- MedGen UID: 96107
- Concept ID: C0424711
- Finding: Finding
Abnormality of the eye
- Microphthalmia
Microphthalmia
- MedGen UID: 10033
- Concept ID: C0026010
- Finding: Congenital Abnormality
Abnormality of the eye
- Nuclear pulverulent cataract
Nuclear pulverulent cataract
- MedGen UID: 343810
- Concept ID: C1852438
- Finding: Disease or Syndrome
Abnormality of the eye
- Strabismus
Strabismus
- MedGen UID: 21337
- Concept ID: C0038379
- Finding: Disease or Syndrome
Abnormality of the eye
- Sutural cataract
Sutural cataract
- MedGen UID: 869308
- Concept ID: C4023734
- Finding: Disease or Syndrome
Abnormality of the eye
- Cataract
- Abnormality of the integument
- Frontal balding
Frontal balding
- MedGen UID: 355251
- Concept ID: C1864584
- Finding: Finding
Abnormality of the integument
- Long lower eyelashes
Long lower eyelashes
- MedGen UID: 868074
- Concept ID: C4022465
- Finding: Finding
Abnormality of the integument
- Palmoplantar erythema
Palmoplantar erythema
- MedGen UID: 1377065
- Concept ID: C4476809
- Finding: Finding
Abnormality of the integument
- Prominent fingertip pads
Prominent fingertip pads
- MedGen UID: 322758
- Concept ID: C1835807
- Finding: Finding
Abnormality of the integument
- Synophrys
Synophrys
- MedGen UID: 98132
- Concept ID: C0431447
- Finding: Congenital Abnormality
Abnormality of the integument
- Frontal balding
- Abnormality of the musculoskeletal system
- Axial hypotonia
Axial hypotonia
- MedGen UID: 342959
- Concept ID: C1853743
- Finding: Finding
Abnormality of the musculoskeletal system
- Brachycephaly
Brachycephaly
- MedGen UID: 113165
- Concept ID: C0221356
- Finding: Congenital Abnormality
Abnormality of the musculoskeletal system
- Camptodactyly
Camptodactyly
- MedGen UID: 195780
- Concept ID: C0685409
- Finding: Congenital Abnormality
Abnormality of the musculoskeletal system
- Frontal bossing
Frontal bossing
- MedGen UID: 67453
- Concept ID: C0221354
- Finding: Congenital Abnormality
Abnormality of the musculoskeletal system
- Hypotonia
Hypotonia
- MedGen UID: 10133
- Concept ID: C0026827
- Finding: Finding
Abnormality of the musculoskeletal system
- Joint hypermobility
Joint hypermobility
- MedGen UID: 336793
- Concept ID: C1844820
- Finding: Finding
Abnormality of the musculoskeletal system
- Malar flattening
Malar flattening
- MedGen UID: 347616
- Concept ID: C1858085
- Finding: Finding
Abnormality of the musculoskeletal system
- Microcephaly
Microcephaly
- MedGen UID: 1644158
- Concept ID: C4551563
- Finding: Finding
Abnormality of the musculoskeletal system
- Micrognathia
Micrognathia
- MedGen UID: 44428
- Concept ID: C0025990
- Finding: Congenital Abnormality
Abnormality of the musculoskeletal system
- Pectus excavatum
Pectus excavatum
- MedGen UID: 781174
- Concept ID: C2051831
- Finding: Finding
Abnormality of the musculoskeletal system
- Prominent metopic ridge
Prominent metopic ridge
- MedGen UID: 387953
- Concept ID: C1857949
- Finding: Finding
Abnormality of the musculoskeletal system
- Prominent occiput
Prominent occiput
- MedGen UID: 381255
- Concept ID: C1853737
- Finding: Finding
Abnormality of the musculoskeletal system
- Scoliosis
Scoliosis
- MedGen UID: 11348
- Concept ID: C0036439
- Finding: Disease or Syndrome
Abnormality of the musculoskeletal system
- Turricephaly
Turricephaly
- MedGen UID: 1726910
- Concept ID: C5399823
- Finding: Congenital Abnormality
Abnormality of the musculoskeletal system
- Axial hypotonia
- Abnormality of the nervous system
- Atypical behavior
Atypical behavior
- MedGen UID: 14048
- Concept ID: C0004941
- Finding: Sign or Symptom
Abnormality of the nervous system
- Autism
Autism
- MedGen UID: 13966
- Concept ID: C0004352
- Finding: Mental or Behavioral Dysfunction
Abnormality of the nervous system
- Bilateral tonic-clonic seizure
Bilateral tonic-clonic seizure
- MedGen UID: 141670
- Concept ID: C0494475
- Finding: Sign or Symptom
Abnormality of the nervous system
- Delayed speech and language development
Delayed speech and language development
- MedGen UID: 105318
- Concept ID: C0454644
- Finding: Finding
Abnormality of the nervous system
- Generalized non-motor (absence) seizure
Generalized non-motor (absence) seizure
- MedGen UID: 1385688
- Concept ID: C4316903
- Finding: Disease or Syndrome
Abnormality of the nervous system
- Global developmental delay
Global developmental delay
- MedGen UID: 107838
- Concept ID: C0557874
- Finding: Finding
Abnormality of the nervous system
- Intellectual disability
Intellectual disability
- MedGen UID: 811461
- Concept ID: C3714756
- Finding: Mental or Behavioral Dysfunction
Abnormality of the nervous system
- Motor stereotypies
Motor stereotypies
- MedGen UID: 21318
- Concept ID: C0038271
- Finding: Individual Behavior
Abnormality of the nervous system
- Schizophrenia
Schizophrenia
- MedGen UID: 48574
- Concept ID: C0036341
- Finding: Mental or Behavioral Dysfunction
Abnormality of the nervous system
- Seizure
Seizure
- MedGen UID: 20693
- Concept ID: C0036572
- Finding: Sign or Symptom
Abnormality of the nervous system
- Self-injurious behavior
Self-injurious behavior
- MedGen UID: 88371
- Concept ID: C0085271
- Finding: Individual Behavior
Abnormality of the nervous system
- Tremor
Tremor
- MedGen UID: 21635
- Concept ID: C0040822
- Finding: Sign or Symptom
Abnormality of the nervous system
- Atypical behavior
- Ear malformation
- Low-set ears
Low-set ears
- MedGen UID: 65980
- Concept ID: C0239234
- Finding: Congenital Abnormality
Ear malformation
- Protruding ear
Protruding ear
- MedGen UID: 343309
- Concept ID: C1855285
- Finding: Finding
Ear malformation
- Sensorineural hearing loss disorder
Sensorineural hearing loss disorder
- MedGen UID: 9164
- Concept ID: C0018784
- Finding: Disease or Syndrome
Ear malformation
- Simple ear
Simple ear
- MedGen UID: 140913
- Concept ID: C0431483
- Finding: Congenital Abnormality
Ear malformation
- Low-set ears
- Growth abnormality
- Failure to thrive
Failure to thrive
- MedGen UID: 746019
- Concept ID: C2315100
- Finding: Disease or Syndrome
Growth abnormality
- Truncal obesity
Truncal obesity
- MedGen UID: 1637490
- Concept ID: C4551560
- Finding: Finding
Growth abnormality
- Failure to thrive
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