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Disease Profile

Rhizomelic chondrodysplasia punctata type 1

Prevalence
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.

Unknown

Age of onset

-

ICD-10

Q77.3

Inheritance

Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease

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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

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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.

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X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder

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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.

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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.

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Not applicable

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Other names (AKA)

RCDP1

Categories

Congenital and Genetic Diseases; Eye diseases; Musculoskeletal Diseases;

Summary

Rhizomelic chondrodysplasia punctata type 1 (RCDP1) is a condition that impairs the normal development of many parts of the body. The major features of this disorder include skeletal abnormalities, distinctive facial features, intellectual disability, and respiratory problems. The condition is caused by mutations in the PEX7 gene. It is inherited in an autosomal recessive pattern. Rhizomelic chondrodysplasia punctata type 1 is one of five types of rhizomelic chondrodysplasia punctata. The types have similar features and are distinguished by their genetic cause.[1]

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
Percent of people who have these symptoms is not available through HPO
Abnormality of metabolism/homeostasis
Laboratory abnormality
Metabolism abnormality

[ more ]

0001939
Alopecia
Hair loss
0001596
Autosomal recessive inheritance
0000007
Calcific stippling of infantile cartilaginous skeleton
0005841
Cerebral cortical atrophy
Decrease in size of the outer layer of the brain due to loss of brain cells
0002120
Cleft palate
Cleft roof of mouth
0000175
Coronal cleft vertebrae
0003417
Delayed CNS myelination
0002188
Depressed nasal bridge
Depressed bridge of nose
Flat bridge of nose
Flat nasal bridge
Flat, nasal bridge
Flattened nasal bridge
Low nasal bridge
Low nasal root

[ more ]

0005280
Developmental cataract
Clouding of the lens of the eye at birth
0000519
Epiphyseal stippling
Speckled calcifications in end part of bone
0010655
Flared metaphysis
Flared wide portion of long bone
0003015
Flat face
Flat facial shape
0012368
Flexion contracture
Flexed joint that cannot be straightened
0001371
Frontal bossing
0002007
Ichthyosis
0008064
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation

[ more ]

0001249
Kyphoscoliosis
0002751
Malar flattening
Zygomatic flattening
0000272
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference

[ more ]

0000252
Micrognathia
Little lower jaw
Small jaw
Small lower jaw

[ more ]

0000347
Respiratory insufficiency
Respiratory impairment
0002093
Rhizomelia
Disproportionately short upper portion of limb
0008905
Seizure
0001250
Sensorineural hearing impairment
0000407
Severe failure to thrive
Severe faltering weight
Severe weight faltering

[ more ]

0001525
Severe short stature
Dwarfism
Proportionate dwarfism
Short stature, severe

[ more ]

0003510
Spasticity
Involuntary muscle stiffness, contraction, or spasm
0001257
Upslanted palpebral fissure
Upward slanting of the opening between the eyelids
0000582

Diagnosis

Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.

Testing Resources

  • The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.

    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

      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.

      Where to Start

      • Genetics Home Reference (GHR) contains information on Rhizomelic chondrodysplasia punctata type 1. This website is maintained by the National Library of Medicine.

        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.
        • 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.
        • PubMed is a searchable database of medical literature and lists journal articles that discuss Rhizomelic chondrodysplasia punctata type 1. Click on the link to view a sample search on this topic.

          References

          1. Rhizomelic chondrodysplasia punctata. Genetics Home Reference (GHR). July 2010; https://ghr.nlm.nih.gov/condition/rhizomelic-chondrodysplasia-punctata. Accessed 5/26/2015.