National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Cortical dysgenesis with pontocerebellar hypoplasia due to TUBB3 mutation



Other Names:
Cortical dysplasia, complex, with other brain malformations 1
Categories:

The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 300570

Definition
A rare, genetic, non-syndromic cerebral malformation due to abnormal neuronal migration disease characterized by the association of cortical dysplasia and pontocerebellar hypoplasia, manifesting with global developmental delay, mild to severe intellectual disability, axial hypotonia, strabismus, nystagmus and, occasionally, optic nerve hypoplasia. Brain imaging reveals variable malformations, including frontally predominant microgyria, gyral disorganization and simplification, dysmorphic and hypertrophic basal ganglia, cerebellar vermis dysplasia, brainstem/corpus callosum hypoplasia, and/or olfactory bulbs agenesis.

Visit the Orphanet disease page for more resources.
Last updated: 2/1/2019

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
Learn More:
HPO ID
30%-79% of people have these symptoms
Bilateral ptosis
Drooping of both upper eyelids
0001488
Cerebellar hypoplasia
Small cerebellum
Underdeveloped cerebellum
[ more ]
0001321
Delayed ability to sit 0025336
Delayed fine motor development 0010862
Esotropia
Inward turning cross eyed
0000565
Expressive language delay 0002474
Feeding difficulties in infancy 0008872
Hypoplasia of the brainstem
Small brainstem
Underdeveloped brainstem
[ more ]
0002365
Hypoplasia of the corpus callosum
Underdevelopment of part of brain called corpus callosum
0002079
Inability to walk 0002540
Infantile axial hypotonia 0009062
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Nystagmus
Involuntary, rapid, rhythmic eye movements
0000639
Partial agenesis of the corpus callosum 0001338
Polymicrogyria
More grooves in brain
0002126
Poor speech 0002465
Postnatal growth retardation
Growth delay as children
0008897
Severe global developmental delay 0011344
Simplified gyral pattern 0009879
Spastic ataxia 0002497
Type II lissencephaly 0007260
5%-29% of people have these symptoms
Abnormal autonomic nervous system physiology 0012332
Abnormal best corrected visual acuity test 0030534
Abnormal saccadic eye movements 0000570
Abnormality of thalamus morphology 0010663
Agenesis of the anterior commissure 0030302
Bilateral sensorineural hearing impairment 0008619
Cerebellar vermis hypoplasia 0001320
Congenital fibrosis of extraocular muscles 0001491
Congenital microcephaly 0011451
Cubitus valgus
Outward turned elbows
0002967
Delayed social development 0012434
Dilation of lateral ventricles 0006956
Downslanted palpebral fissures
Downward slanting of the opening between the eyelids
0000494
Dysarthria
Difficulty articulating speech
0001260
Dysgenesis of the hippocampus 0025101
Epicanthus
Eye folds
Prominent eye folds
[ more ]
0000286
Flat occiput 0005469
Focal seizures, afebril 0040168
Genu valgum
Knock knees
0002857
Grasp reflex 0030903
High palate
Elevated palate
Increased palatal height
[ more ]
0000218
Hypoplasia of the olfactory bulb 0040326
Impaired mastication
Chewing difficulties
Chewing difficulty
Difficulty chewing
[ more ]
0005216
Impaired social interactions
Impaired social interaction
Poor social interactions
[ more ]
0000735
Insomnia
Difficulty staying or falling asleep
0100785
Joint laxity
Joint instability
Lax joints
Loose-jointedness
Loosejointedness
[ more ]
0001388
Kyphoscoliosis 0002751
Large basal ganglia 0007048
Low-set ears
Low set ears
Lowset ears
[ more ]
0000369
Macrocephaly
Increased size of skull
Large head
Large head circumference
[ more ]
0000256
Metatarsus adductus
Front half of foot turns inward
0001840
Micrognathia
Little lower jaw
Small jaw
Small lower jaw
[ more ]
0000347
Mood changes
Moody
0001575
Normal pressure hydrocephalus 0002343
Oculomotor apraxia 0000657
Optic nerve hypoplasia 0000609
Plagiocephaly
Flat head syndrome
Flattening of skull
Rhomboid shaped skull
[ more ]
0001357
Seizure 0001250
Short attention span
Poor attention span
Problem paying attention
[ more ]
0000736
Short foot
Short feet
Small feet
[ more ]
0001773
Small basal ganglia 0012697
Small hand
Disproportionately small hands
0200055
Spastic diplegia 0001264
Spastic tetraplegia 0002510
Stereotypy
Repetitive movements
Repetitive or self-injurious behavior
[ more ]
0000733
Thoracic scoliosis 0002943
Torticollis
Wry neck
0000473
Visual loss
Loss of vision
Vision loss
[ more ]
0000572
Percent of people who have these symptoms is not available through HPO
Agenesis of corpus callosum 0001274
Autosomal dominant inheritance 0000006
Congenital onset
Symptoms present at birth
0003577
Cortical dysplasia 0002539
Global developmental delay 0001263
Intellectual disability, moderate
IQ between 34 and 49
0002342
Lissencephaly
Fewer or absent grooves in brain
0001339
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference
[ more ]
0000252
Muscular hypotonia of the trunk
Low muscle tone in trunk
0008936
Spasticity
Involuntary muscle stiffness, contraction, or spasm
0001257
Strabismus
Cross-eyed
Squint
Squint eyes
[ more ]
0000486
Variable expressivity 0003828
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Last updated: 7/1/2020

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

In-Depth Information

  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.

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