X-linked intellectual disability with marfanoid habitus

The Lujan-Fryns syndrome or X-linked mental retardation (XLMR) with marfanoid habitus syndrome is a syndromic X-linked form of intellectual disability, associated with tall, marfanoid stature, distinct facial dysmorphism and behavioral problems.



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Narrow down the case reports



Total: 11 (papers)

  


(per page)
Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
1
(69.7%)
24715367
Blepharophimosis, short humeri, developmental delay and hirschsprung disease: expanding the phenotypic spectrum of MED12 mutations.
Isidor B, Lefebvre T, Le Vaillant C, Caillaud G, Faivre L, Jossic F, Joubert M, Winer N, Le Caignec C, Borck G, Pelet A, Amiel J, Toutain A, Ronce N, Raynaud M, Verloes A, David A.
Am J Med Genet A. 2014;164A(7):1821-5.
Blepharophimosis Short humerus
KAT6B KIF1BP MED12
c|SUB|G|3443|A;RS#:387907360 p|SUB|R|1148|H;RS#:387907360 rs387907360
Blepharophimosis Developmental Disabilities Genetic Association Studies Hirschsprung Disease Homo sapiens Infant, Newborn Male Mediator Complex Mutation Phenotype Sibling Syndrome
2
(63.5%)
19842190
Characterization of a new X-linked mental retardation syndrome with microcephaly, cortical malformation, and thin habitus.
du Souich C, Chou A, Yin J, Oh T, Nelson TN, Hurlburt J, Arbour L, Friedlander R, McGillivray BC, Tyshchenko N, Rump A, Poskitt KJ, Demos MK, Van Allen MI, Boerkoel CF.
Am J Med Genet A. 2009;149A(11):2469-78.
Micrognathia Upslanted palpebral fissure
rs121909833
Adult Body Constitution Child Child, Preschool Facies Fatal Outcome Females Hand Homo sapiens Infant Infant, Newborn Magnetic Resonance Imaging Male Mental Retardation, X-Linked Microcephaly Middle Aged Pregnancy
3
(60.4%)
27286923
Two male sibs with severe micrognathia and a missense variant in MED12.
Prescott TE, Kulseth MA, Heimdal KR, Stadheim B, Hopp E, Gambin T, Coban Akdemir ZH, Jhangiani SN, Muzny DM, Gibbs RA, Lupski JR, Stray-Pedersen A.
Eur J Med Genet. 2016;59(8):367-72.
Pierre-Robin sequence Micrognathia
MED12
c|SUB|G|1862|A p|SUB|R|621|Q
Exons Genes, X-Linked Genetic Association Studies Genotype Homo sapiens Infant Male Mediator Complex Micrognathism Missense Mutation Phenotype Severity of Illness Index Sibling Single Nucleotide Polymorphism X-Ray Computed Tomography
4
(26.3%)
17036352
Psychopathology in the Lujan-Fryns syndrome: report of two patients and review.
Lerma-Carrillo I, Molina JD, Cuevas-Duran T, Julve-Correcher C, Espejo-Saavedra JM, Andrade-Rosa C, Lopez-Munoz F.
Am J Med Genet A. 2006;140(24):2807-11.
Narrow face
rs1292888378 rs1369442321 rs1556334519 rs1556334793 rs1556336534 rs1556337063 rs1556338747 rs1556340124 rs748064846 rs769232520 rs863223696
Adult Craniofacial Abnormalities Homo sapiens Male Marfan Syndrome Mental Retardation, X-Linked Phenotype Psychopathology Syndrome
5
(4.0%)
28544239
A novel variant in MED12 gene: Further delineation of phenotype.
Narayanan DL, Phadke SR.
Am J Med Genet A. 2017;173(8):2257-2260.
Intellectual disability
MED12
Anus, Imperforate Cell Proliferation Child, Preschool Constipation Craniofacial Abnormalities Face Genetic Association Studies Homo sapiens Intellectual Disability Male Marfan Syndrome Mediator Complex Mental Retardation, X-Linked
5
(4.0%)
28027854
Exome sequencing in children of women with skewed X-inactivation identifies atypical cases and complex phenotypes.
Giorgio E, Brussino A, Biamino E, Belligni EF, Bruselles A, Ciolfi A, Caputo V, Pizzi S, Calcia A, Di Gregorio E, Cavalieri S, Mancini C, Pozzi E, Ferrero M, Riberi E, Borelli I, Amoroso A, Ferrero GB, Tartaglia M, Brusco A.
Eur J Paediatr Neurol. 2017;21(3):475-484.
Intellectual disability
ATRX FBN1 MECP2
c|SUB|C|649|T;RS#:786205894 c|SUB|T|707|G p|SUB|F|236|C p|SUB|P|217|S;RS#:786205894 p|SUB|T|1020|A;RS#:111801777
Child Craniofacial Abnormalities Exome Genes, X-Linked Genetic Predisposition to Disease Homo sapiens Intellectual Disability Male Marfan Syndrome Mental Retardation, X-Linked Mutation Phenotype Retrospective Studies Sequence Analysis, DNA alpha-Thalassemia
5
(4.0%)
27980443
(5138064)
Lujan-Fryns Syndrome (LFS): A Unique Combination of Hypernasality, Marfanoid Body Habitus, and Neuropsychiatric Issues, Presenting as Acute-Onset Dysphagia.
Khan A, Humayun M, Haider I, Ayub M.
Clin Med Insights Case Rep. 2016;9:115-118.
Dysphagia
MED12
5
(4.0%)
27500536
De novo mutations in genes of mediator complex causing syndromic intellectual disability: mediatorpathy or transcriptomopathy?
Caro-Llopis A, Rosello M, Orellana C, Oltra S, Monfort S, Mayo S, Martinez F.
Pediatr Res. 2016;80(6):809-815.
Intellectual disability
MED12 MED13L
Amino Acid Substitution Child Codon, Nonsense DNA Mutational Analysis High-Throughput Nucleotide Sequencing Homo sapiens Intellectual Disability Male Mediator Complex Missense Mutation Mutant Proteins Mutation Phenotype Syndrome Young Adult
5
(4.0%)
16760741
Eating disorder in a patient with phenotypical features of Lujan-Fryns syndrome.
Alonso P, Pintos G, Almazan F, Hernandez L, Loran E, Menchon JM, Vallejo J.
Clin Dysmorphol. 2006;15(3):181-4.
Hyperactivity
Adult Craniofacial Abnormalities Feeding and Eating Disorders Homo sapiens Intelligence Tests Joint Instability Learning Disabilities Male Marfan Syndrome Syndrome
5
(4.0%)
10508979
Aortic root dilation in apparent Lujan-Fryns syndrome.
Wittine LM, Josephson KD, Williams MS.
Am J Med Genet. 1999;86(5):405-9.
Ventricular septal defect
Adult Differential Diagnosis Face Homo sapiens Male Marfan Syndrome Pathological Dilatation Syndrome Ventricular Septal Defects
        

Phenotype(s) retrieved from Orphanet

    Total: 34

HPO ID Term Frequency
HP:0000218 High palate Very frequent (99-80%)
HP:0000256 Macrocephaly Very frequent (99-80%)
HP:0000347 Micrognathia Very frequent (99-80%)
HP:0000348 High forehead Very frequent (99-80%)
HP:0000708 Behavioral abnormality Very frequent (99-80%)
HP:0001249 Intellectual disability Very frequent (99-80%)
HP:0001252 Muscular hypotonia Very frequent (99-80%)
HP:0001519 Disproportionate tall stature Very frequent (99-80%)
HP:0001608 Abnormality of the voice Very frequent (99-80%)
HP:0001611 Nasal speech Very frequent (99-80%)
HP:0002167 Neurological speech impairment Very frequent (99-80%)
HP:0002650 Scoliosis Very frequent (99-80%)
HP:0000053 Macroorchidism Frequent (79-30%)
HP:0000275 Narrow face Frequent (79-30%)
HP:0000322 Short philtrum Frequent (79-30%)
HP:0000327 Hypoplasia of the maxilla Frequent (79-30%)
HP:0000426 Prominent nasal bridge Frequent (79-30%)
HP:0000767 Pectus excavatum Frequent (79-30%)
HP:0001166 Arachnodactyly Frequent (79-30%)
HP:0001631 Atrial septal defect Frequent (79-30%)
HP:0005692 Joint hyperflexibility Frequent (79-30%)
HP:0007018 Attention deficit hyperactivity disorder Frequent (79-30%)
HP:0007370 Aplasia/Hypoplasia of the corpus callosum Frequent (79-30%)
HP:0000164 Abnormality of the dentition Occasional (29-5%)
HP:0000248 Brachycephaly Occasional (29-5%)
HP:0000369 Low-set ears Occasional (29-5%)
HP:0000411 Protruding ear Occasional (29-5%)
HP:0000678 Dental crowding Occasional (29-5%)
HP:0000709 Psychosis Occasional (29-5%)
HP:0000738 Hallucinations Occasional (29-5%)
HP:0001156 Brachydactyly Occasional (29-5%)
HP:0001250 Seizures Occasional (29-5%)
HP:0100490 Camptodactyly of finger Occasional (29-5%)
HP:0100753 Schizophrenia Occasional (29-5%)


Phenotype(s) retrieved from case reports

    Total: 5

HPO ID Term # of case reports
HP:0000752 Hyperactivity 1
HP:0001249 Intellectual disability 1
HP:0002015 Dysphagia 1
HP:0100753 Schizophrenia 1
HP:0100962 Shyness 1


Causative gene(s) retrieved from Orphanet

    Total: 3

Gene Symbol Gene Name Entrez Gene ID
MED12 mediator complex subunit 12 9968
ZDHHC9 zinc finger DHHC-type containing 9 51114
UPF3B UPF3B regulator of nonsense mediated mRNA decay 65109