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Arnold-Chiari type I malformation

Select all: Gene symbolChrAvg % covered at 10xLocus TypeNoteOMIMPrevious symbol(s)Phenotype(s)Slice(s)
CDC4522q11.21100%gene with protein product603465CDC45L2, CDC45L2-3 toe syndactyly; Abnormality of epiphysis morphology; Abnormality of the ribs; Anal atresia; Anal stenosis; Anotia; Aplasia/Hypoplasia of the patella; Aplastic clavicles; Arnold-Chiari type I malformation; Atresia of the external auditory canal; Atrial septal defect; Autosomal recessive inheritance; Bowing of the legs; Camptodactyly of finger; Choanal atresia; Cleft palate; Clinodactyly of the 5th finger; Clitoral hypertrophy; Clitoral hypoplasia; Clubbing; Complete atrioventricular canal defect; Craniosynostosis; Cryptorchidism; Decreased body weight; Delayed skeletal maturation; Duodenal stenosis; Failure to thrive; Feeding difficulties; Global developmental delay; Hearing impairment; High palate; High, narrow palate; Hypoplasia of the maxilla; Hypoplastic labia majora; Hypoplastic labia minora; Hypospadias; Intrauterine growth retardation; Joint hyperflexibility; Joint laxity; Low-set ears; Mandibular aplasia; Microcephaly; Micrognathia; Micropenis; Microtia; Microtia, third degree; Myopia; Narrow mouth; Patellar aplasia; Posteriorly rotated ears; Preaxial polydactyly; Progressive microcephaly; Proptosis; Pulmonary hypoplasia; Respiratory distress; Respiratory failure; Retrognathia; Sagittal craniosynostosis; Scoliosis; Severe short stature; Short stature; Slender long bone; Strabismus; Thin eyebrow; Urethral stricture; Ventricular septal defect; Vesicoureteral reflux; Wide anterior fontanel
DKK110q21.1100%gene with protein product605189Abnormality of the clivus; Abnormality of the eleventh cranial nerve; Abnormality of the twelfth cranial nerve; Abnormality of the vestibulocochlear nerve; Anteriorly placed odontoid process; Areflexia of upper limbs; Arnold-Chiari type I malformation; Bone pain; Cervical C2/C3 vertebral fusion; Cranial nerve compression; Cranial nerve paralysis; Distal peripheral sensory neuropathy; Dysesthesia; Dysphagia; Gait ataxia; Gait disturbance; Increased intracranial pressure; Lower limb hyperreflexia; Myelopathy; Neck pain; Nystagmus; Osteoporosis; Progressive cerebellar ataxia; Recurrent fractures; Recurrent paroxysmal headache; Scoliosis; Sensory impairment; Small posterior fossa; Stiff neck; Syringomyelia; Tinnitus; Vertebral compression fractures; Vertigo; Vocal cord paralysis
FGFR210q26.13100%gene with protein product176943KGFR, BEK, CFD1, JWS2-3 finger syndactyly; 2-3 toe syndactyly; Abnormal facial shape; Abnormal heart morphology; Abnormal morphology of the limbic system; Abnormal morphology of the nasolacrimal system; Abnormal renal morphology; Abnormality of cardiovascular system morphology; Abnormality of pelvic girdle bone morphology; Abnormality of the antihelix; Abnormality of the cervical spine; Abnormality of the nasopharynx; Abnormality of the palate; Abnormality of the pancreas; Abnormality of the periosteum; Abnormality of the pinna; Abnormality of the ribs; Absence of Stensen duct; Absent first metatarsal; Absent lacrimal punctum; Absent proximal phalanx of thumb; Absent radius; Absent septum pellucidum; Acanthosis nigricans; Acne; Acrobrachycephaly; Agenesis of corpus callosum; Alacrima; Anomalous tracheal cartilage; Anteriorly placed anus; Anteverted nares; Aplasia of the parotid gland; Aplasia/Hypoplasia of the earlobes; Aplasia/Hypoplasia of the thumb; Aqueductal stenosis; Arachnodactyly; Arachnoid cyst; Arnold-Chiari malformation; Arnold-Chiari type I malformation; Atresia of the external auditory canal; Atrial septal defect; Autosomal dominant inheritance; Autosomal recessive inheritance; Bell-shaped thorax; Bicoronal synostosis; Bifid scrotum; Bifid uvula; Bilateral single transverse palmar creases; Bilateral triphalangeal thumbs; Blepharospasm; Brachycephaly; Brachydactyly; Brachyturricephaly; Breast carcinoma; Broad distal hallux; Broad distal phalanx of the thumb; Broad forehead; Broad hallux; Broad hallux phalanx; Broad metatarsal; Broad thumb; Bronchomalacia; Buphthalmos; Calcaneonavicular fusion; Camptodactyly; Camptodactyly of finger; Carious teeth; Cartilaginous trachea; Cerebellar hypoplasia; Cervical C5/C6 vertebrae fusion; Choanal atresia; Choanal stenosis; Chronic otitis media; Cleft of chin; Cleft palate; Clinodactyly of the 5th finger; Clitoral hypertrophy; Cloverleaf skull; Conductive hearing impairment; Congenital stationary night blindness; Conical incisor; Conjunctivitis; Convex nasal ridge; Corneal perforation; Coronal craniosynostosis; Coronal hypospadias; Craniofacial dysostosis; Craniosynostosis; Cryptorchidism; Cupped ear; Cutaneous finger syndactyly; Dacryocystitis; Decreased calvarial ossification; Delayed cranial suture closure; Delayed eruption of primary teeth; Delayed eruption of teeth; Dental crowding; Dental malocclusion; Depressed nasal bridge; Deviation of the thumb; Dolichocephaly; Downslanted palpebral fissures; Dysgerminoma; Ectopic anus; Elbow ankylosis; Esophageal atresia; External ear malformation; Extramedullary hematopoiesis; Facial asymmetry; Feeding difficulties in infancy; Femoral bowing; Finger syndactyly; Flat face; Flat forehead; Frontal bossing; Fused labia minora; Gingival overgrowth; Global developmental delay; Growth abnormality; Hallux valgus; Hallux varus; Hearing abnormality; Hearing impairment; High forehead; High palate; Hirsutism; Humeroradial synostosis; Hydrocephalus; Hydronephrosis; Hyperextensible skin; Hyperlordosis; Hypertelorism; Hypertension; Hypodontia; Hypoplasia of dental enamel; Hypoplasia of the lacrimal punctum; Hypoplasia of the maxilla; Hypoplasia of the radius; Hypoplasia of the ulna; Hypoplasia of the zygomatic bone; Hypoplastic ischia; Hypoplastic labia majora; Hypoplastic lacrimal duct; Incomplete ossification of pubis; Increased intracranial pressure; Increased level of L-fucose in urine; Intellectual disability; Intellectual disability, mild; Intellectual disability, moderate; Joint stiffness; Lacrimal gland aplasia; Lacrimal gland hypoplasia; Lambdoidal craniosynostosis; Large fontanelles; Laryngomalacia; Limitation of joint mobility; Limited elbow extension; Long nose; Long philtrum; Low anterior hairline; Low-set ears; Low-set, posteriorly rotated ears; Macrocephaly; Macrotia; Malar flattening; Mandibular prognathia; Megalencephaly; Megalocornea; Melanocytic nevus; Metopic depression; Micrognathia; Microtia; Midface retrusion; Mixed hearing impairment; Morphological abnormality of the semicircular canal; Multiple suture craniosynostosis; Narrow chest; Narrow internal auditory canal; Narrow nose; Narrow palate; Narrow pelvis bone; Nasolacrimal duct obstruction; Natal tooth; Nephrosclerosis; Open bite; Optic atrophy; Osteopenia; Overfolding of the superior helices; Overriding aorta; Oxycephaly; Palmoplantar cutis gyrata; Palmoplantar cutis laxa; Palmoplantar keratoderma; Parietal foramina; Partial duplication of the distal phalanx of the 2nd finger; Partial duplication of the distal phalanx of the 3rd finger; Partial duplication of thumb phalanx; Periorbital fullness; Plagiocephaly; Posterior fossa cyst; Preauricular skin furrow; Preaxial polydactyly; Prominent crus of helix; Prominent nasal bridge; Prominent scrotal raphe; Proptosis; Ptosis; Pyloric stenosis; Radial deviation of the 3rd finger; Radioulnar synostosis; Recurrent corneal erosions; Reduced number of teeth; Renal agenesis; Respiratory distress; Rocker bottom foot; Sagittal craniosynostosis; Seizures; Shallow orbits; Short clavicles; Short foot; Short hallux; Short metatarsal; Short middle phalanx of toe; Short nose; Short palm; Short stature; Shortening of all middle phalanges of the fingers; Skull asymmetry; Sleep apnea; Small hand; Small nail; Small thenar eminence; Somatic mutation; Steep acetabular roof; Stenosis of the external auditory canal; Stomach cancer; Strabismus; Subcutaneous nodule; Syndactyly; Synostosis of carpal bones; Telecanthus; Toe syndactyly; Tracheomalacia; Turricephaly; Ulnar bowing; Underdeveloped supraorbital ridges; Upper airway obstruction; Vaginal atresia; Variable expressivity; Ventricular septal defect; Ventriculomegaly; Visceral angiomatosis; Visual impairment; Wide anterior fontanel; XerostomiaDisorders of Sex Development; Short-Rib Thoracic Dysplasia
HRAS11p15.5100%gene with protein product190020HRAS1Abnormal dermatoglyphics; Abnormality of dental color; Abnormality of dental enamel; Abnormality of dental morphology; Abnormality of finger; Abnormality of the fingernails; Abnormality of toe; Abnormality of vision; Acanthosis nigricans; Achilles tendon contracture; Adenoma sebaceum; Alopecia; Anteverted nares; Aplasia/Hypoplasia of the cerebellum; Arnold-Chiari type I malformation; Arrhythmia; Asymmetric growth; Atrial septal defect; Autosomal dominant inheritance; Barrel-shaped chest; Basal cell carcinoma; Biparietal narrowing; Bladder carcinoma; Bronchomalacia; Cavernous hemangioma; Cerebral atrophy; Cerebral cortical atrophy; Coarctation of aorta; Coarse facial features; Coloboma; Concave nail; Cranial asymmetry; Cryptorchidism; Curly hair; Deep palmar crease; Deep plantar creases; Deep-set nails; Delayed skeletal maturation; Depressed nasal bridge; Downslanted palpebral fissures; EEG abnormality; Enlarged cerebellum; Epicanthus; Facial asymmetry; Failure to thrive; Failure to thrive in infancy; Fragile nails; Frontal bossing; Full cheeks; Gastroesophageal reflux; Genu recurvatum; Global developmental delay; Hemangioma; Hemimegalencephaly; High palate; Hoarse voice; Horseshoe kidney; Hydrocephalus; Hyperextensibility of the finger joints; Hyperkeratosis; Hyperpigmentation of the skin; Hyperreflexia; Hypertelorism; Hypertrophic cardiomyopathy; Hypoglycemia; Hypophosphatemic rickets; Hypopigmentation of the skin; Hypoplastic toenails; Ichthyosis; Intellectual disability; Iris coloboma; Irregular hyperpigmentation; Joint hyperflexibility; Keratoconus; Kyphoscoliosis; Lack of skin elasticity; Limited elbow movement; Low-set ears; Macrocephaly; Macroglossia; Melanocytic nevus; Micrognathia; Microphthalmia; Mitral valve prolapse; Muscular hypotonia; Narrow palate; Nevus; Nevus sebaceous; Obstructive sleep apnea; Osteopenia; Overgrowth; Papilloma; Pectus carinatum; Plagiocephaly; Pneumothorax; Pointed chin; Polyhydramnios; Poor suck; Porencephalic cyst; Posteriorly rotated ears; Premature birth; Prominent occiput; Ptosis; Pulmonic stenosis; Pyloric stenosis; Recurrent fractures; Reduced tendon reflexes; Redundant neck skin; Redundant skin; Respiratory failure; Rhabdomyosarcoma; Seizures; Short neck; Short stature; Somatic mosaicism; Sparse hair; Sporadic; Strabismus; Sudden death; Talipes equinovarus; Telecanthus; Thick lower lip vermilion; Thickened Achilles tendon; Thickened nuchal skin fold; Thin nail; Tracheomalacia; Ulnar deviation of finger; Ventricular septal defect; Ventriculomegaly; Vertebral segmentation defect; Vestibular Schwannoma; Webbed neck; Wide anterior fontanel; Woolly hair
NFIA1p31.3100%gene with protein product600727Agenesis of corpus callosum; Anteverted nares; Arnold-Chiari type I malformation; Broad face; Broad forehead; Cognitive impairment; Cutis marmorata; Generalized hypotonia; Global developmental delay; Hydronephrosis; Hypoplasia of the corpus callosum; Inguinal hernia; Intellectual disability; Low-set ears; Macrocephaly; Narrow mouth; Phenotypic variability; Renal hypoplasia; Seizures; Short chin; Short nose; Sporadic; Syringomyelia; Thin upper lip vermilion; Ventriculomegaly; Vesicoureteral reflux
NOTCH319p13.1299.94%gene with protein product600276CADASILAbnormal electroretinogram; Abnormal form of the vertebral bodies; Abnormality of the hair; Abnormality of the metaphysis; Abnormality of the middle ear ossicles; Abnormality of the musculature; Abnormality of the rib cage; Abnormality of the skin; Abnormality of the skull; Abnormality of the thorax; Abnormality of visual evoked potentials; Adult onset; Amaurosis fugax; Aphasia; Arachnoid cyst; Arnold-Chiari type I malformation; Atresia of the external auditory canal; Autosomal dominant inheritance; Biconcave vertebral bodies; Bone cyst; Cerebral cortical atrophy; Cerebral ischemia; Chondrocalcinosis; Coarse hair; Coma; Conductive hearing impairment; Confusion; Cranial nerve paralysis; Craniofacial hyperostosis; Cryptorchidism; Dementia; Dental crowding; Depressivity; Developmental regression; Dolichocephaly; Downslanted palpebral fissures; Dural ectasia; EEG abnormality; Elevated serum creatine phosphokinase; Fever; Gait disturbance; Generalized hypotonia; Gingival fibromatosis; Hemiplegia; High palate; High, narrow palate; Hypertelorism; Impaired pain sensation; Inguinal hernia; Joint hyperflexibility; Joint hypermobility; Kyphosis; Leukoencephalopathy; Long philtrum; Low posterior hairline; Low-set ears; Malar flattening; Memory impairment; Meningocele; Micrognathia; Migraine; Motor delay; Narrow face; Neoplasm of the lung; Neoplasm of the skin; Nonarteritic anterior ischemic optic neuropathy; Patent ductus arteriosus; Pectus excavatum; Platybasia; Posteriorly rotated ears; Prominent metopic ridge; Pseudobulbar paralysis; Ptosis; Recurrent subcortical infarcts; Retinal arteriolar tortuosity; Sclerosis of skull base; Scoliosis; Seizures; Sensory neuropathy; Short nasal bridge; Short neck; Short stature; Smooth philtrum; Spasticity; Stroke; Subcortical dementia; Subcutaneous nodule; Syringomyelia; Umbilical hernia; Urinary incontinence; Varicose veins; Vertebral fusion; Visual impairment; Wormian bones
PAX210q24.31100%gene with protein product167409Abnormality of the foot; Arnold-Chiari type I malformation; Autosomal dominant inheritance; Autosomal recessive inheritance; Bicornuate uterus; Chorioretinal atrophy; Congenital onset; Focal segmental glomerulosclerosis; Gliosis; Hyperextensible skin; Hypertelorism; Hypertension; Incomplete penetrance; Infantile onset; Intellectual disability; Joint laxity; Low-set ears; Microphthalmia; Morning glory anomaly; Multicystic kidney dysplasia; Myopia; Nephrotic syndrome; Oligohydramnios; Optic nerve coloboma; Optic nerve dysplasia; Orbital cyst; Phenotypic variability; Potter facies; Primary amenorrhea; Proteinuria; Pulmonary hypoplasia; Renal agenesis; Renal dysplasia; Renal hypoplasia; Renal insufficiency; Retinal coloboma; Retrognathia; Seizures; Sensorineural hearing impairment; Soft skin; Stage 5 chronic kidney disease; Talipes equinovarus; Vaginal atresia; Variable expressivity; Vesicoureteral reflux; Visual impairmentCongenital Kidney and Urinary Tract (CKUT) Anomalies; Nephrotic Syndrome
PPP1CB2p23.299.68%gene with protein product600590Arnold-Chiari type I malformation; Autosomal dominant inheritance; Broad neck; Cafe-au-lait spot; Coarctation of aorta; Craniosynostosis; Cryptorchidism; Dandy-Walker malformation; Delayed skeletal maturation; Delayed speech and language development; Dermal translucency; Downslanted palpebral fissures; Failure to thrive; Freckling; Generalized hypotonia; Global developmental delay; High palate; Hypertelorism; Joint hypermobility; Low-set ears; Mitral regurgitation; Optic nerve hypoplasia; Overfolded helix; Patent ductus arteriosus; Patent foramen ovale; Peripheral pulmonary artery stenosis; Posteriorly rotated ears; Prominent forehead; Pulmonic stenosis; Right bundle branch block; Short neck; Short stature; Slow-growing hair; Sparse hair; Thickened helices; Ventricular septal defect; Webbed neck
SKI1p36.33-p36.99.98%gene with protein product164780Abdominal wall muscle weakness; Abnormal aortic valve morphology; Abnormality of the pinna; Absent speech; Agenesis of corpus callosum; Anteverted nares; Aortic aneurysm; Arachnodactyly; Arnold-Chiari type I malformation; Autism; Autosomal dominant inheritance; Brachycephaly; Brachydactyly; C1-C2 vertebral abnormality; Camptodactyly; Camptodactyly of finger; Cerebral cortical atrophy; Clinodactyly of the 5th finger; Communicating hydrocephalus; Conductive hearing impairment; Constipation; Craniosynostosis; Deeply set eye; Delayed cranial suture closure; Dental malocclusion; Depressed nasal bridge; Depressed nasal ridge; Dislocated radial head; Dolichocephaly; Downslanted palpebral fissures; Dysphagia; EEG abnormality; Epicanthus; Failure to thrive; Feeding difficulties in infancy; Frontal bossing; Gait disturbance; Gastroesophageal reflux; Generalized hypotonia; Genu recurvatum; Global developmental delay; High forehead; High hypermetropia; High, narrow palate; Horizontal eyebrow; Hydrocephalus; Hyperextensible skin; Hypertelorism; Hypoplasia of the maxilla; Inguinal hernia; Intellectual disability; Joint contracture of the hand; Joint hyperflexibility; Joint laxity; Lateral clavicle hook; Long philtrum; Low-set ears; Low-set, posteriorly rotated ears; Metaphyseal widening; Metatarsus adductus; Microcephaly; Micrognathia; Midface retrusion; Minimal subcutaneous fat; Mitral regurgitation; Mitral valve prolapse; Muscular hypotonia; Myopia; Narrow mouth; Narrow palate; Obstructive sleep apnea; Osteopenia; Pectus carinatum; Pectus excavatum; Pes planus; Pointed chin; Poor speech; Posteriorly rotated ears; Proptosis; Ptosis; Retrognathia; Scoliosis; Seizures; Self-injurious behavior; Shallow orbits; Short foot; Sporadic; Stereotypy; Strabismus; Supernumerary ribs; Talipes equinovarus; Telecanthus; Thin ribs; Umbilical hernia; Ventriculomegaly; Wide anterior fontanel; Wide nasal bridgeInflammatory Bowel Disease

The gene coverage data provided by GeneDx represent an estimate based on previous results, but the specific sequencing coverage data for the genes selected may vary from individual to individual, and cannot be predicted exactly. Changes to an approved gene list can only be made by contacting GeneDx directly at 888-729-1206 and asking to speak with a member of our Whole Exome Sequencing Laboratory.


Customize below OR enter Suggested Slice ID on printed requisition form
(e.g. 706 XomeDxSlice - Slice ID: CS-Albinism).

Suggested Slice IDSuggested Gene List Name
CS-AAAplastic Anemia
CS-AutoImmuneAutoimmune Disorders
CS-BBSBardet-Biedl Syndrome
CS-BMFBone Marrow Failure Syndromes
CS-CVIDCommon Variable Immune Deficiency
CS-CKUTCongenital Kidney and Urinary Tract (CKUT) Anomalies
CS-DSDDisorders of Sex Development
CS-EDEctodermal Dysplasia
CS-FAFanconi Anemia
CS-AnemiaHemolytic Anemia
CS-IBDInflammatory Bowel Disease
CS-MaleInfMale Infertility
CS-WWSMuscular dystropy-dystroglycanopathy (Walker-Warburg)
CS-NephroticNephrotic Syndrome
CS-PPKCIPalmoplantar keratoderma plus congenital ichthyosis
CS-Primary ImmunodefPrimary Immunodeficiency
CS-SRTDShort-Rib Thoracic Dysplasia
CS-WSWaardenburg Syndrome