KBG syndrome

KBG syndrome is a rare condition characterised by a typical facial dysmorphism, macrodontia of the upper central incisors, skeletal (mainly costovertebral) anomalies and developmental delay.



Input patient's signs and symptoms


Narrow down the case reports



Total: 31 (papers)

  


(per page)
Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
1
(53.4%)
23494856
Partial deletion of ANKRD11 results in the KBG phenotype distinct from the 16q24.3 microdeletion syndrome.
Khalifa M, Stein J, Grau L, Nelson V, Meck J, Aradhya S, Duby J.
Am J Med Genet A. 2013;161A(4):835-40.
Brachydactyly Macrodontia
ANKRD11
rs1221781038 rs146474985 rs1555524861 rs1555524870 rs1555526796 rs1555527497 rs1555528040 rs1555528357 rs1555528558 rs1555529052 rs1555529297 rs1555529572 rs1555529645 rs1555529726 rs1555529734 rs1555535454 rs878855327 rs886039477 rs886041125 rs886041791
Bone Diseases, Developmental Chromosome Deletion Chromosomes, Human, Pair 16 Differential Diagnosis Facies Females Fluorescent in Situ Hybridization Gene Deletion Homo sapiens Infant Intellectual Disability Male Mosaicism Phenotype Repressor Proteins Syndrome Tooth Abnormalities
2
(48.8%)
4073130
Unusual facial appearance, microcephaly, growth and mental retardation, and syndactyly. A new syndrome?
Filippi G.
Am J Med Genet. 1985;22(4):821-4.
Microcephaly Syndactyly
Face Females Fingers Growth Disorders Homo sapiens Intellectual Disability Male Microcephaly Syndrome Toes
3
(41.7%)
7810561
Six additional cases of the KBG syndrome: clinical reports and outline of the diagnostic criteria.
Zollino M, Battaglia A, D'Avanzo MG, Della Bruna MM, Marini R, Scarano G, Cappa M, Neri G.
Am J Med Genet. 1994;52(3):302-7.
Microcephaly Macrodontia
Child Face Females Homo sapiens Intellectual Disability Male Syndactyly Syndrome Tooth Abnormalities
4
(40.1%)
15384099
Clinical variability in KBG syndrome: report of three unrelated families.
Maegawa GH, Leite JC, Felix TM, da Silveira HL, da Silveira HE.
Am J Med Genet A. 2004;131(2):150-4.
Cervical ribs Macrodontia
Adult Bone and Bones Brazil Child Cohort Studies Craniofacial Abnormalities Dwarfism Females Homo sapiens Intellectual Disability Male Syndrome Tooth Abnormalities
5
(38.7%)
31191201
Novel Mutations and Unreported Clinical Features in KBG Syndrome.
Scarano E, Tassone M, Graziano C, Gibertoni D, Tamburrino F, Perri A, Gnazzo M, Severi G, Lepri F, Mazzanti L.
Mol Syndromol. 2019;10(3):130-138.
Joint stiffness Macrodontia
6
(37.2%)
18822138
(2565666)
The KBG syndrome: Case report.
Morghen I, Ferri E.
Cases J. 2008;1(1):186.
Short neck
7
(27.8%)
29224748
Audiological findings in a de novo mutation of ANKRD11 gene in KBG syndrome: Report of a case and review of the literature.
Bianchi PM, Bianchi A, Digilio MC, Tucci FM, Sitzia E, De Vincentiis GC.
Int J Pediatr Otorhinolaryngol. 2017;103:109-112.
Intellectual disability Macrodontia
ANKRD11
Audiometry Bone Diseases, Developmental Child Facies Females Homo sapiens Intellectual Disability Mutation Phenotype Repressor Proteins Tooth Abnormalities
7
(27.8%)
28422132
(5533198)
Haploinsufficiency for ANKRD11-flanking genes makes the difference between KBG and 16q24.3 microdeletion syndromes: 12 new cases.
Novara F, Rinaldi B, Sisodiya SM, Coppola A, Giglio S, Stanzial F, Benedicenti F, Donaldson A, Andrieux J, Stapleton R, Weber A, Reho P, van Ravenswaaij-Arts C, Kerstjens-Frederikse WS, Vermeesch JR, Devriendt K, Bacino CA, Delahaye A, Maas SM, Iolascon A, Zuffardi O.
Eur J Hum Genet. 2017;25(6):694-701.
Astigmatism Macrodontia
rs1221781038 rs146474985 rs1555524861 rs1555524870 rs1555526796 rs1555527497 rs1555528040 rs1555528357 rs1555528558 rs1555529052 rs1555529297 rs1555529572 rs1555529645 rs1555529726 rs1555529734 rs1555535454 rs878855327 rs886039477 rs886041125 rs886041791
Adult Bone Diseases, Developmental Cadherins Child Chromosome Deletion Chromosomes, Human, Pair 16 Differential Diagnosis Facies Females Haploinsufficiency Homo sapiens Intellectual Disability Male Nuclear Proteins Phenotype Repressor Proteins Tooth Abnormalities
7
(27.8%)
26187867
An unusual case of KBG syndrome with unique oral findings.
Hafiz A, Mufeed A, Ismael M, Alam M.
BMJ Case Rep. 2015;2015:.
Macrodontia
Bone Diseases, Developmental Child Facies Females Homo sapiens India Intellectual Disability Syndrome Tooth Abnormalities
7
(27.8%)
25833229
Short Stature in KBG Syndrome: First Responses to Growth Hormone Treatment.
Reynaert N, Ockeloen CW, Savendahl L, Beckers D, Devriendt K, Kleefstra T, Carels CE, Grigelioniene G, Nordgren A, Francois I, de Zegher F, Casteels K.
Horm Res Paediatr. 2015;83(5):361-4.
Intellectual disability Macrodontia
ANKRD11 GH1 GNRH1
Bone Diseases, Developmental Child Facies Growth Disorders Homo sapiens Human Growth Hormone Intellectual Disability Male Tooth Abnormalities
        

Phenotype(s) retrieved from Orphanet

    Total: 40

HPO ID Term Frequency
HP:0000028 Cryptorchidism Frequent (79-30%)
HP:0000175 Cleft palate Frequent (79-30%)
HP:0000219 Thin upper lip vermilion Frequent (79-30%)
HP:0000252 Microcephaly Frequent (79-30%)
HP:0000316 Hypertelorism Frequent (79-30%)
HP:0000325 Triangular face Frequent (79-30%)
HP:0000343 Long philtrum Frequent (79-30%)
HP:0000400 Macrotia Frequent (79-30%)
HP:0000426 Prominent nasal bridge Frequent (79-30%)
HP:0000430 Underdeveloped nasal alae Frequent (79-30%)
HP:0000463 Anteverted nares Frequent (79-30%)
HP:0000465 Webbed neck Frequent (79-30%)
HP:0000470 Short neck Frequent (79-30%)
HP:0000486 Strabismus Frequent (79-30%)
HP:0000506 Telecanthus Frequent (79-30%)
HP:0000574 Thick eyebrow Frequent (79-30%)
HP:0000637 Long palpebral fissure Frequent (79-30%)
HP:0000664 Synophrys Frequent (79-30%)
HP:0000677 Oligodontia Frequent (79-30%)
HP:0000891 Cervical ribs Frequent (79-30%)
HP:0000954 Single transverse palmar crease Frequent (79-30%)
HP:0001263 Global developmental delay Frequent (79-30%)
HP:0001566 Widely-spaced maxillary central incisors Frequent (79-30%)
HP:0001572 Macrodontia Frequent (79-30%)
HP:0002650 Scoliosis Frequent (79-30%)
HP:0002750 Delayed skeletal maturation Frequent (79-30%)
HP:0002942 Thoracic kyphosis Frequent (79-30%)
HP:0002948 Vertebral fusion Frequent (79-30%)
HP:0004322 Short stature Frequent (79-30%)
HP:0008513 Bilateral conductive hearing impairment Frequent (79-30%)
HP:0010720 Abnormal hair pattern Frequent (79-30%)
HP:0011842 Abnormality of skeletal morphology Frequent (79-30%)
HP:0011968 Feeding difficulties Frequent (79-30%)
HP:0012725 Cutaneous syndactyly Frequent (79-30%)
HP:0040019 Finger clinodactyly Frequent (79-30%)
HP:0000311 Round face Occasional (29-5%)
HP:0001250 Seizures Occasional (29-5%)
HP:0002353 EEG abnormality Occasional (29-5%)
HP:0004474 Persistent open anterior fontanelle Occasional (29-5%)
HP:0045017 Congenital malformation of the left heart Occasional (29-5%)


Phenotype(s) retrieved from case reports

    Total: 15

HPO ID Term # of case reports
HP:0004322 Short stature 16
HP:0001572 Macrodontia 14
HP:0001249 Intellectual disability 9
HP:0000717 Autism 3
HP:0001250 Seizures 3
HP:0001263 Global developmental delay 3
HP:0000483 Astigmatism 1
HP:0000668 Hypodontia 1
HP:0001873 Thrombocytopenia 1
HP:0002353 EEG abnormality 1
HP:0002373 Febrile seizures 1
HP:0002617 Dilatation 1
HP:0003510 Severe short stature 1
HP:0011087 Talon cusp 1
HP:0100584 Endocarditis 1


Causative gene(s) retrieved from Orphanet

    Total: 1

Gene Symbol Gene Name Entrez Gene ID
ANKRD11 ankyrin repeat domain 11 29123