Medeira-Dennis-Donnai syndrome

Other Names:

Summary

A rare developmental defect during embryogenesis disorder characterized by spinal dysraphism, cleft lip and palate, limb reduction defects and anencephaly. There have been no further descriptions in the literature since 1994.

Estimated Number of People with this Disease

In the U.S. there may be between

1 to 300

What Information Does GARD Have For This Disease?

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

*Data may be currently unavailable to GARD at this time.

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

Before Birth

Newborn

Birth-4 weeks

Infant

1-23 months

Child

2-11 years

Adolescent

12-18 years

Adult

19-65 years

Older Adult

65+ years

The common ages for symptoms to begin in this disease are shown above by the colored icon(s).

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

9 Symptoms

Tile View

List View

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.

Medical Term

Anencephaly

Frequency: Very frequent

Description

Anencephaly is a developmental anomaly characterized by a fetus that has no calvarium, with a lack of most or all of the fetus' brain tissue. Anencephaly belongs to a collective group known as neural tube defects (NTD) and is a result of the neural tube failing to close in its rostral end during fetal development.

Foetal anencephaly

9 Symptoms

This section is currently in development.

Next Steps

Talking with the Medical Team

Good communication between the patient, family, and medical team can lead to an accurate diagnosis. In addition, health care decisions can be made together which improves the patient’s well-being and quality of life.

Describing Symptoms

Describe details about the symptoms. Because there may be many different causes for a single symptom, it is best not to make a conclusion about the diagnosis. The detailed descriptions help the medical provider determine the correct diagnosis.

To help describe a symptom:

Use a smartphone or a notebook to record each symptom before the appointment
Describe each symptom by answering the following questions:
- When did the symptom start?
- How often does it happen?
- Does anything make it better or worse?
Tell the medical team whether any symptoms affect daily activities

Preparing for the First Visit

Working with a medical team to find a diagnosis can be a long process that will require more than one appointment. Make better health decisions by being prepared for the first visit with each member of the medical team.

Make informed decisions about health care:

Prepare a list of questions and concerns before the appointment
List the most important questions first, not all questions may be answered in the first visit
Ask questions about symptoms, possible diagnoses, tests, and treatment options

For future appointments:

Discuss what was not addressed at the last visit
Discuss changes in the quality of life for the patient, family, and caregivers
Discuss health goals and other issues in the patient’s and family’s life that may affect the health care decisions

Take notes during the appointments to help remember what was discussed.

Next: Diagnosis & Treatment

Last Updated: Nov. 8, 2021