Disease at a Glance

Summary
Porencephaly is a rare condition that affects the central nervous system. People with Porencephaly develop fluid-filled cysts or cavities in the brain either before or shortly after birth. The severity of the condition and the associated signs and symptoms vary significantly based on the size, location, and number of cysts. Common features include developmental delay, reduced muscle tone (hypotonia), seizures, macrocephaly (unusually large head size), spastic hemiplegia, speech problems, delayed growth, and intellectual disability. Porencephaly is usually the result of damage from infection or stroke after birth. In these cases, the condition occurs sporadically in people with no family history of the condition. There is an inherited form of the condition called familial Porencephaly, which is caused by changes in the COL4A1 or COL4A2 genes and is inherited in an autosomal dominant manner.

About Porencephaly

Many rare diseases have limited information. Currently GARD is able to provide the following information for Porencephaly:

  • Population Estimate:In the US, there are less than 50,000 with this disease.
  • Symptoms:May start to appear during Pregnancy, at Birth, and as an Infant.
  • Experts:GARD is not currently aware of a specialist directory for this condition.
  • Organizations:GARD is not aware of organizations specific to this condition. 
  • Categories:Neurological DiseaseBirth DefectGenetic Disease
When do symptoms of this disease begin?
The most common ages for symptoms of a disease to begin is called age of onset. Age of onset can vary for different diseases and may be used by a doctor to determine the diagnosis. For some diseases, symptoms may begin in a single age range or several age ranges. For other diseases, symptoms may begin any time during a person's life.
Prenatal Selected
Before Birth
Newborn Selected
Birth-4 weeks
Infant Selected
1-23 months
Child
2-11 years
Adolescent
12-18 years
Adult
19-65 years
Older Adult
65+ years
Symptoms may start to appear during Pregnancy, at Birth, and as an Infant.

Symptoms

These symptoms may be different from person to person. Some people may have more symptoms than others and symptoms can range from mild to severe. This list does not include every symptom.
This disease might cause these symptoms:
Nervous System Nervous System

8 Symptoms

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Nervous System

The nervous system is made up of the brain, spinal cord, and nerves. Common symptoms of problems in the nervous system include trouble moving, speaking, swallowing, breathing, or learning. Problems with memory, senses, or mood may also occur. Nervous system diseases are usually diagnosed and treated by neurologists.

Causes

This section is currently in development. 

Advocacy and Support Groups

How can a patient organization be helpful?

Patient advocacy and support organizations offer many valuable services and often drive the research and development of treatments for their disease(s). Because these organizations include the life experiences of many different people who have a specific disease, they may best understand the resources needed by those in their community. Although missions of organizations may differ, services may include, but are not limited to:
 

  • Ways to connect to others and share personal stories
  • Easy-to-read information
  • Latest treatment and research information
  • Lists of specialists or specialty centers
  • Financial aid and travel resources
Please note: GARD provides the names of patient organizations for informational purposes only and not as an endorsement of their services. Please contact the organization directly if you have questions about the information or resources they provide.

What do disease-specific organizations do?

Some organizations build a community of patients and families impacted by a specific disease or group of related diseases. These organizations usually have more disease-specific information and services, including helping new members find others who have the same disease.

What do organizations that focus on a medical condition do?

Some organizations build a community of patients and families impacted by a medical condition, like epilepsy, or related conditions, like heart problems, that may also be a symptom in other diseases. These organizations usually have information and services focused more on the medical condition(s), but may also have information about associated diseases.

What do umbrella organizations do?

Rare disease umbrella organizations focus on improving the lives of all those impacted by rare diseases through education and advocacy efforts. Umbrella organizations provide a range of services for patients, families, and disease-specific organizations.

Patient Organizations

4 Organizations

Organization Name

Organization Type

Service

Country

Language

EveryLife Foundation for Rare Diseases
https://everylifefoundation.org/
Umbrella

Porencephaly

Service

Information

Country

United States

Language

English

Spanish

Umbrella

Porencephaly

Service

Information

Country

United States

Language

English

Umbrella

Porencephaly

Service

Information

Country

United States

Language

English

National Organization for Rare Disorders
https://rarediseases.org/
Umbrella

Porencephaly

Service

Information

Research

Country

United States

Language

English

Spanish

4 Organizations

Research

Why is Research Important for Rare Diseases?

Research increases what we know about rare diseases so that people can get a diagnosis more quickly and can know what to expect. Research also helps doctors better understand how well a treatment works and can lead to new treatment discoveries. It may even help improve diagnosis and treatment of more common diseases.

How do you find the right clinical study?

  • Discuss the clinical study with a trusted medical provider before enrolling
  • Review the "Study Description," which discusses the purpose of the study, and "Eligibility Criteria," which lists who can and cannot participate in the study
  • Work with the research coordinator to review the written informed consent, including the risks and benefits of the study
  • Inquire about the specific treatments and procedures, location of the study, number of visits, and time obligation
  • Determine whether health insurance is required and whether there are costs to the participant for the medical care, travel, and lodging
  • Ask questions. Remember, it is okay to decide not to participate in research

For More Information

How do you find the right clinical study?

  • Discuss the clinical study with a trusted medical provider before enrolling
  • Review the "Study Description," which discusses the purpose of the study, and "Eligibility Criteria," which lists who can and cannot participate in the study
  • Work with the research coordinator to review the written informed consent, including the risks and benefits of the study
  • Inquire about the specific treatments and procedures, location of the study, number of visits, and time obligation
  • Determine whether health insurance is required and whether there are costs to the participant for the medical care, travel, and lodging
  • Ask questions. Remember, it is okay to decide not to participate in research

For More Information

ClinicalTrials.gov provides current information on clinical research studies in the United States and abroad. Talk to a trusted doctor before choosing to participate in any clinical study. Check this site often for new trials that become available.
Please contact GARD if you need help. Our Information Specialists can help you find a clinical trial and answer questions about rare diseases. GARD cannot enroll individuals in clinical trials.
ClinicalTrials.gov provides current information on clinical research studies in the United States and abroad. Talk to a trusted doctor before choosing to participate in any clinical study. Check this site often for new trials that become available.
Please contact GARD if you need help. Our Information Specialists can help you find a clinical trial and answer questions about rare diseases. GARD cannot enroll individuals in clinical trials.

Take steps toward getting a diagnosis by working with your doctor, finding the right specialists, and coordinating medical care.

Last Updated: February 2023