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Disease Profile
Bilateral parasagittal parieto-occipital polymicrogyria
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.
0
Age of onset
-
ICD-10
Q04.3
Inheritance
Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.
Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.
X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.
Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.
Not applicable
Categories
Congenital and Genetic Diseases; Nervous System Diseases
Symptoms
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.
Medical Terms | Other Names |
Learn More:
HPO ID
|
---|---|---|
80%-99% of people have these symptoms | ||
Cortical dysplasia | 0002539 | |
Delayed fine motor development | 0010862 | |
Delayed gross motor development |
Delayed motor skills
|
0002194 |
Delayed speech and language development |
Deficiency of speech development
Delayed language development
Delayed speech
Delayed speech acquisition
Delayed speech development
Impaired speech and language development
Impaired speech development
Language delay
Language delayed
Language development deficit
Late-onset speech development
Poor language development
Speech and language delay
Speech and language difficulties
Speech delay
[ more ] |
0000750 |
30%-79% of people have these symptoms | ||
Bilateral tonic-clonic |
Grand mal seizures
|
0002069 |
Global |
0001263 | |
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ] |
0001249 | |
5%-29% of people have these symptoms | ||
Abnormal digit morphology |
Abnormality of fingers or toes
|
0011297 |
Abnormal facial shape |
Unusual facial appearance
|
0001999 |
Abnormal fear/anxiety-related behavior | 0100852 | |
Abnormal palate morphology |
Abnormality of the palate
Abnormality of the roof of the mouth
[ more ] |
0000174 |
Abnormality of the skin | 0000951 | |
Aggressive behavior |
Aggression
Aggressive behaviour
Aggressiveness
[ more ] |
0000718 |
Auditory hallucinations |
Hallucinations of sound
Hearing sounds
[ more ] |
0008765 |
Delirium | 0031258 | |
Focal impaired awareness seizure | 0002384 | |
Hearing impairment |
Deafness
Hearing defect
[ more ] |
0000365 |
Macrocephaly |
Increased size of skull
Large head
Large head circumference
[ more ] |
0000256 |
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference
[ more ] |
0000252 | |
Muscular |
Low or weak muscle tone
|
0001252 |
Pseudobulbar paralysis | 0007024 | |
Psychotic mentation | 0001345 | |
Involuntary muscle stiffness, contraction, or spasm
|
0001257 | |
Cross-eyed
Squint
Squint eyes
[ more ] |
0000486 | |
Suicidal ideation | 0031589 | |
Visual hallucinations | 0002367 | |
Visual impairment |
Impaired vision
Loss of eyesight
Poor vision
[ more ] |
0000505 |
Organizations
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
Organizations Supporting this Disease
-
PMG Awareness Organization
4533 MacArthur Boulevard
Suite 5182
Newport Beach, CA 92660
Telephone: (949) 329-5975
E-mail: [email protected]
Website: https://pmgawareness.org/
Learn more
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
- GeneReviews provides current, expert-authored, peer-reviewed, full-text articles describing the application of genetic testing to the diagnosis, management, and genetic counseling of patients with specific inherited conditions.
- The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.