Trisomy 9p

Trisomy 9p is a rare chromosomal anomaly syndrome, resulting from a partial or complete trisomy of the short arm of chromosome 9, with a wide phenotypic variablility, typically characterized by intellectual disability, craniofacial dysmorphism (e.g. microcephaly, large anterior fontanel, hypertelorism, strabismus, downslanting palpebral fissures, malformed, low-set, protruding ears, bulbous nose, macrostomia, down-turned corners of mouth, micrognathia), digital anomalies (brachydactyly and clinodactyly), and short stature. Less frequently patients present with cardiopathy and renal, skeletal, and central nervous system malformations.



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Narrow down the case reports



Total: 37 (papers)

  


(per page)
Matched Phenotype  Gene  Mutation  MeSH
Rank
(Similarity)
PMID
(PMCID)
1
(74.2%)
10321302
[Trisomy 9p: a clinical picture and the importance of examining the family].
van Ravenswaaij-Arts C, van der Looij E, Smeets D.
Ned Tijdschr Geneeskd. 1999;143(13):682-6.
Short philtrum Short finger
Adult Chromosome Aberrations Chromosomes, Human, Pair 9 Family Females Genetic Counseling Homo sapiens Infant Intellectual Disability Male Syndrome Trisomy
2
(63.5%)
12485198
Characterization of partial trisomy 9p due to insertional translocation by chromosomal (micro)FISH.
de Pater JM, Ippel PF, van Dam WM, Loneus WH, Engelen JJ.
Clin Genet. 2002;62(6):482-7.
Epicanthus Micrognathia
Chromosomes, Human, Pair 12 Chromosomes, Human, Pair 9 Developmental Disabilities Fluorescent in Situ Hybridization Growth Homo sapiens Intellectual Disability Male Trisomy
3
(57.8%)
8737648
Non-mosaic tetrasomy 9p in a liveborn infant with multiple congenital anomalies: case report and comparison with trisomy 9p.
Leichtman LG, Zackowski JL, Storto PD, Newlin A.
Am J Med Genet. 1996;63(3):434-7.
Micrognathia
Adult Aneuploidy Chromosome Aberrations Chromosomes, Human, Pair 9 Congenital Foot Deformity Congenital Hand Deformities Congenital Heart Defects Face Females Head Homo sapiens Infant, Newborn Isochromosomes Male Mosaicism Pregnancy Trisomy
4
(47.5%)
1084115
The 9p- syndrome.
Alfi OS, Donnell GN, Allderdice PW, Derencsenyi A.
Ann Genet. 1976;19(1):11-6.
Trigonocephaly Long upper lip
CHP1
Adult Child Chromosome Aberrations Chromosome Deletion Chromosomes, Human, 6-12 and X Craniosynostosis Dermatoglyphics Females Homo sapiens Infant Intellectual Disability Male Syndrome
5
(45.9%)
22821638
Nail and phalangeal agenesis in a patient with 4pter and 9pter duplication.
Rambaud J, Marey I, Dupont C, Perrin-Sabourin L, Capri Y, Tabet AC, Benzacken B, Verloes A, Aboura A, Gerard M.
Am J Med Genet A. 2012;158A(9):2277-82.
Microcephaly Cleft lip
Chromosomes, Human, Pair 4 Chromosomes, Human, Pair 9 Females Gene Duplication Homo sapiens Infant Magnetic Resonance Imaging
6
(45.9%)
1218860
Trisomy 9p due to paternal translocation, t(9;13) (q13;q12).
Schinzel A, Hayashi K, Schmid W.
Humangenetik. 1975;30(4):307-16.
Short upper lip Short neck
Chromosome Aberrations Chromosomes, Human, 13-15 Dermatoglyphics Females Homo sapiens Intellectual Disability Phenotype
7
(42.7%)
11491308
Combined trisomy 9P and Shprintzen syndrome resulting from a paternal t(9;22).
Komatsu H, Kihara A, Komura E, Mitsufuji N, Tsujii H, Kakita S, Ikuta H.
Genet Couns. 2001;12(2):137-43.
Retrognathia
DGCR
Chromosomes, Human, Pair 22 Chromosomes, Human, Pair 9 Females Fluorescent in Situ Hybridization Homo sapiens Infant Syndrome Trisomy
8
(40.2%)
19866432
Oropharyngeal dysphagia and language delay in partial trisomy 9p: case report.
Rossi NF, Gatto AR, Cola PC, Souza DH, Moretti-Ferreira D, Giacheti CM.
Genet Mol Res. 2009;8(3):1133-8.
Microcephaly Bulbous nose
Chromosomes, Human, Pair 9 Deglutition Disorders Females Fluorescent in Situ Hybridization Homo sapiens Infant Language Disorders Male Phenotype Trisomy
9
(39.0%)
30901750
Choroidal artery embolization in the management of cerebrospinal fluid overproduction: case report and review of the literature.
Li D, Shokuhfar T, Pantalone J, Rothstein B, Alden TD, Shaibani A, Saratsis AM.
J Neurosurg Pediatr. 2019;:1-12.
Macrocephaly
9
(39.0%)
22965227
Another rare case of a child with de novo terminal 9p deletion and co-existing interstitial 9p duplication: clinical findings and molecular cytogenetic study by array-CGH.
Kowalczyk M, Tomaszewska A, Podbiol-Palenta A, Constantinou M, Wawrzkiewicz-Witkowska A, Kowalski J, Kaluewski B, Zajczek S, Srebniak MI.
Cytogenet Genome Res. 2013;139(1):9-16.
Dandy-Walker malformation
TMED2
Abnormal Karyotype Chromosomal Duplication Chromosome Banding Chromosome Deletion Chromosomes, Human, Pair 9 Developmental Disabilities Females Homo sapiens Infant
        

Phenotype(s) retrieved from Orphanet

    Total: 27

HPO ID Term Frequency
HP:0000248 Brachycephaly Very frequent (99-80%)
HP:0000252 Microcephaly Very frequent (99-80%)
HP:0000400 Macrotia Very frequent (99-80%)
HP:0000411 Protruding ear Very frequent (99-80%)
HP:0000470 Short neck Very frequent (99-80%)
HP:0000490 Deeply set eye Very frequent (99-80%)
HP:0000615 Abnormal pupil morphology Very frequent (99-80%)
HP:0001249 Intellectual disability Very frequent (99-80%)
HP:0001263 Global developmental delay Very frequent (99-80%)
HP:0001800 Hypoplastic toenails Very frequent (99-80%)
HP:0001804 Hypoplastic fingernail Very frequent (99-80%)
HP:0002714 Downturned corners of mouth Very frequent (99-80%)
HP:0005105 Abnormal nasal morphology Very frequent (99-80%)
HP:0006610 Wide intermamillary distance Very frequent (99-80%)
HP:0007477 Abnormal dermatoglyphics Very frequent (99-80%)
HP:0000316 Hypertelorism Frequent (79-30%)
HP:0000494 Downslanted palpebral fissures Frequent (79-30%)
HP:0000678 Dental crowding Frequent (79-30%)
HP:0000960 Sacral dimple Frequent (79-30%)
HP:0001156 Brachydactyly Frequent (79-30%)
HP:0002650 Scoliosis Frequent (79-30%)
HP:0002808 Kyphosis Frequent (79-30%)
HP:0004209 Clinodactyly of the 5th finger Frequent (79-30%)
HP:0007598 Bilateral single transverse palmar creases Frequent (79-30%)
HP:0011079 Impacted tooth Frequent (79-30%)
HP:0100798 Fingernail dysplasia Frequent (79-30%)
HP:0100335 Non-midline cleft lip Occasional (29-5%)


Phenotype(s) retrieved from case reports

    Total: 27

HPO ID Term # of case reports
HP:0000252 Microcephaly 3
HP:0001305 Dandy-Walker malformation 3
HP:0000238 Hydrocephalus 2
HP:0000126 Hydronephrosis 1
HP:0000256 Macrocephaly 1
HP:0000278 Retrognathia 1
HP:0000286 Epicanthus 1
HP:0000347 Micrognathia 1
HP:0000369 Low-set ears 1
HP:0000414 Bulbous nose 1
HP:0000490 Deeply set eye 1
HP:0000717 Autism 1
HP:0001166 Arachnodactyly 1
HP:0001249 Intellectual disability 1
HP:0001334 Communicating hydrocephalus 1
HP:0001798 Anonychia 1
HP:0002015 Dysphagia 1
HP:0002119 Ventriculomegaly 1
HP:0003089 Hamstring contractures 1
HP:0004383 Hypoplastic left heart 1
HP:0005160 Total anomalous pulmonary venous return 1
HP:0007269 Spinal muscular atrophy 1
HP:0007560 Unusual dermatoglyphics 1
HP:0012245 Sex reversal 1
HP:0012758 Neurodevelopmental delay 1
HP:0030084 Clinodactyly 1
HP:0200006 Slanting of the palpebral fissure 1


Causative gene(s) retrieved from Orphanet

    Total: 0

Gene Symbol Gene Name Entrez Gene ID